Date Geyser Time Interval Duration Preplay Height Prediction 1/1/1977 Old Faithful 8:50 4:06 8:21 1/1/1977 Old Faithful 10:00 1:10 short 10:52 10:02 1/1/1977 Old Faithful 11:06 1:06 long 1/1/1977 Old Faithful 12:26 1:20 ~3:25 1/1/1977 Old Faithful 13:37 1:11 3:34 13:36 1/1/1977 Old Faithful 14:58 1:21 4:19 14:44 1/1/1977 Old Faithful 16:07 1:09 2:07 16:00 16:11 1/1/1977 Old Faithful 16:54 0:47 4:35 16:43 16:59 1/1/1977 Old Faithful 18:08 1:14 long 18:09 1/1/1977 Beehive 13:00 1/1/1977 Castle 16:13 ie 1/1/1977 Depression 16:25 1/1/1977 Plume 15:49 1/1/1977 Plume 16:16 1/1/1977 Plume 16:42 1/1/1977 Plume 17:08 1/2/1977 Old Faithful 10:56 ~4:00 1/2/1977 Old Faithful 12:15 1:19 ~3:48 12:08 1/2/1977 Old Faithful 13:19 1:04 ~3:40 13:24 1/2/1977 Old Faithful 14:36 1:17 ~4:14 14:28 1/2/1977 Old Faithful 15:46 1:10 3:30 15:59 1/2/1977 Old Faithful 16:51 1:05 16:52 1/2/1977 Grand 11:40 1/3/1977 Old Faithful ~08:16 1/3/1977 Old Faithful 9:12 ~0:56 4:20 1/3/1977 Old Faithful 10:45 1:33 4:01 26m PP 10:26 1/3/1977 Old Faithful 12:02 1:17 2:09 11:57 1/3/1977 Old Faithful 12:52 0:50 4:41 12:54 1/3/1977 Old Faithful 14:17 1:25 4:00 14:10 1/3/1977 Old Faithful 15:31 1:14 3:53 15:27 1/3/1977 Grand 12:45 ie 1/3/1977 Plume 10:10 1/3/1977 Plume 10:37 1/4/1977 Old Faithful 9:40 3:33 1/4/1977 Old Faithful 10:48 1:08 3:39 10:46 1/4/1977 Old Faithful 11:59 1:11 Long 11:54 1/4/1977 Old Faithful 13:08 1:09 3:46 13:06 1/4/1977 Old Faithful 14:27 1:19 4:04 14:18 1/4/1977 Old Faithful 15:31 1:04 ~4:10 15:38 1/4/1977 Old Faithful 16:42:00 1:11 ~3:30 16:42 1/4/1977 Castle 11:30 1/4/1977 Little Cub 14:41 1/5/1977 Old Faithful 9:08 Long 1/5/1977 Old Faithful 10:21 1:13 3:55 10:19 10:08 1/5/1977 Old Faithful 11:21 1:00 4:22 none 1/5/1977 Old Faithful 12:47 1:26 1:57 12:28 1/5/1977 Old Faithful 13:28 0:41 4:01 1/5/1977 Old Faithful 14:56:00 1:28 2:21 14:38 1/5/1977 Old Faithful 15:50 0:54 4:57 15:43 15:50 1/5/1977 Old Faithful 19:20 ~2 1/4 1/5/1977 Old Faithful 20:19 0:59 Long 1/5/1977 Beehive 12:48 "D=4m42,steam2m18;start 78s afterOF" 1/5/1977 Beehive's Indicator 12:44 ie 1/5/1977 Depression 13:33 1/5/1977 Grand 13:35 1/5/1977 Grand 21:45 1/5/1977 Rocket 13:51 1/6/1977 Old Faithful 10:02 4:06 9:52 1/6/1977 Old Faithful 11:12 1:10 1:58 11:04 11:14 1/6/1977 Old Faithful 12:07 0:55 4:15 12:02 1/6/1977 Old Faithful 13:21 1:14 4:09 13:13 13:20 1/6/1977 Old Faithful 14:30 1:09 3:58 14:34 1/6/1977 Old Faithful 15:41 1:11 3:54 15:36 15:42 1/6/1977 Old Faithful 16:56 1:15 4:13 16:53 1/6/1977 Old Faithful 17:59 1:03 Long 1/6/1977 Beehive 11:42 ie 1/6/1977 Castle 12:54 ie 1/6/1977 Depression 10:41 1/6/1977 Grand 15:11 4b 1/6/1977 Lion 11:19 ie 1/6/1977 Lion 14:25 1/6/1977 Plume 11:14 1/6/1977 Plume 11:40 1/6/1977 Plume 12:09 1/7/1977 Old Faithful 8:24 long 1/7/1977 Old Faithful 9:31 1:07 long 9:36 1/7/1977 Old Faithful 10:49 1:18 3:28 10:41 1/7/1977 Old Faithful 12:01 1:12 3:27 11:54 1/7/1977 Old Faithful 13:12 1:11 4:20 13:01 13:06 1/7/1977 Old Faithful 14:23 1:11 3:51 14:25 1/7/1977 Old Faithful 15:40 1:17 3:29 15:33 1/7/1977 Old Faithful 16:43 1:03 3:26 16:50 1/7/1977 Old Faithful 17:58 1:15 ~4:00 17:48 1/7/1977 Old Faithful 19:13 1:15 4:44 19:01 19:10 1/7/1977 Old Faithful 20:21 1:08 20:28 1/7/1977 Beehive 18:48 ie 1/7/1977 Castle 12:40 ie 1/7/1977 Castle 21:33 1/7/1977 Grand 15:13 1/7/1977 Lone Star 11:55 VR ie 1/7/1977 Riverside 14:20 1/7/1977 Vent 15:50 1/8/1977 Old Faithful 08:05-8:10 ? 1/8/1977 Old Faithful ~09:27 ~3:10(+20s) 9:15 1/8/1977 Old Faithful 10:38 ~1:11 ~2:53 10:32 1/8/1977 Old Faithful 11:45 1:07 ~4:03 11:39 11:36 1/8/1977 Old Faithful 12:54 1:09 4:19 12:58 1/8/1977 Old Faithful 14:10 1:16 3:38 14:01 14:07 1/8/1977 Old Faithful 15:18 1:08 4:07 15:20 1/8/1977 Old Faithful 16:31 1:13 3:52 16:31 1/8/1977 Old Faithful 17:53 1:22 Long 17:34 17:40 1/8/1977 Plume 11:15 1/8/1977 Plume 11:39 1/8/1977 Plume 12:05 1/8/1977 Plume 12:54 1/9/1977 Old Faithful 8:52 4:06 1/9/1977 Old Faithful 10:04 ############################################################################################################################################################################################################################################################### 2:14 9:55 10:05 1/9/1977 Old Faithful 10:44 ############################################################################################################################################################################################################################################################### 5:06 10:44 10:56 1/9/1977 Old Faithful 12:11 12:11 ~2:48 12:10 12:09 1/9/1977 Old Faithful 13:18 2:29 2:06 13:12 13:09 1/9/1977 Old Faithful 14:19 2:11 4:09 14:04 14:08 1/9/1977 Old Faithful 15:40 2:24 2:11 15:29 15:31 1/9/1977 Old Faithful 16:40 2:17 4:39 16:29 16:32 1/9/1977 Depression 13:16 Low -28F 1/10/1977 Old Faithful 7:58 4:12 1/10/1977 Old Faithful 9:08 1:10 1:59 9:03 9:11 1/10/1977 Old Faithful 9:55 0:47 long 9:58 1/10/1977 Old Faithful 11:10 1:15 2:30 11:09 11:04 1/10/1977 Old Faithful 12:20 1:10 4:06 12:14 12:02 1/10/1977 Old Faithful 13:26 1:06 4:10 13:25 13:32 1/10/1977 Old Faithful 14:43 1:17 4:20 14:42 14:38 1/10/1977 Old Faithful 15:56 1:13 1:49 15:54 15:55 1/10/1977 Old Faithful 16:46 0:50 long 16:46 1/10/1977 Old Faithful 18:13 1:27 Long 18:00 17:56 1/10/1977 Castle 15:09 1/10/1977 Grand 10:00 3b 1/10/1977 Plume 9:04 1/10/1977 Plume 9:28 1/10/1977 Plume 9:54 1/11/1977 Old Faithful 9:07 4:11 9:02 1/11/1977 Old Faithful 10:13 1:06 1:52 10:13 10:20 1/11/1977 Old Faithful 11:11 0:58 4:13 10:58 1/11/1977 Old Faithful 12:20 1:09 long 1/11/1977 Old Faithful 13:35 1:15 4:14 13:29 13:30 1/11/1977 Old Faithful 14:50 1:15 long 14:48 1/11/1977 Old Faithful 15:57 1:07 4:06 16:00 1/11/1977 Old Faithful 17:05 1:08 3:35 17:09 1/11/1977 Old Faithful 18:20 1:15 Long 1/11/1977 Beehive 16:00 "76sec after start of O.F.concerted;D=5m10,steam2m37" 1/11/1977 Beehive's Indicator 15:51 1/11/1977 Castle 10:50 ie 1/11/1977 Depression 14:24 1/11/1977 Grand 11:09 ie 1/11/1977 Lion 11:13 initial 1/11/1977 Lion 13:58 1/11/1977 Lion 18:20 1/12/1977 Old Faithful 9:48 ~4 9:40 1/12/1977 Old Faithful 10:53 1:05 3:21 11:00 1/12/1977 Old Faithful 12:07 1:14 4:09 12:01 11:56 1/12/1977 Old Faithful 13:19 1:12 4:25 13:16 13:19 1/12/1977 Old Faithful 14:28 1:09 4:10 14:28 14:34 1/12/1977 Old Faithful 15:40 1:12 4:05 15:40 1/12/1977 Old Faithful 16:54 1:14 3:54 16:52 1/12/1977 Beehive ~14:10 1/12/1977 Dome active 1/12/1977 Grand 10:15 1/12/1977 Riverside 10:50 1/12/1977 Spiteful 10:49 1/13/1977 Old Faithful 8:50 1:59 8:46 1/13/1977 Old Faithful 9:38 0:48 long 9:40 1/13/1977 Old Faithful 10:59 1:21 1:52 10:48 1/13/1977 Old Faithful 11:45 0:46 long 11:48 1/13/1977 Old Faithful 12:59 1:14 2:40 12:58 1/13/1977 Old Faithful 13:55 0:56 2:26(?) 13:55 13:56 1/13/1977 Old Faithful 15:21 1:26 3:56 15:03 14:50 1/13/1977 Old Faithful 16:41 1:20 4:00 16:19 16:30 1/13/1977 Beehive 16:03 "D=5m14,steam=2m15" 1/13/1977 Beehive's Indicator 15:53 1/13/1977 Castle 9:07 ie 1/13/1977 Dome active 1/13/1977 Giantess in late steam phase (no time given) 1/13/1977 Giantess 15:16 (water) 1/13/1977 Giantess 17:11 (2 bursts) 1/13/1977 Grand 12:45 ie 1/14/1977 Old Faithful 10:49 3:26 10:39 1/14/1977 Old Faithful 12:08 1:19 4:19 12:01 11:54 1/14/1977 Old Faithful 13:16 1:08 3:35 13:11 13:20 1/14/1977 Old Faithful 14:23 1:07 4:29 ~14:22 14:26 1/14/1977 Old Faithful 15:47 1:24 4:14 15:35 15:38 1/14/1977 Old Faithful 16:58 1:11 1:53 17:00 1/14/1977 Beehive 10:02 1/14/1977 Beehive's Indicator ~09:55 1/14/1977 Castle 12:20 1/14/1977 Grand 12:30 ie 1/14/1977 Riverside 10:30 1/15/1977 Old Faithful 9:31 ~3:08 1/15/1977 Old Faithful 10:41 1:10 2:06 10:36 10:33 1/15/1977 Old Faithful 11:34 0:53 4:37 11:26 11:25 1/15/1977 Old Faithful 12:47 1:13 3:30 12:45 12:51 1/15/1977 Old Faithful 13:55 1:08 3:53 13:55 13:57 1/15/1977 Old Faithful 15:11 1:16 3:34 15:00 15:05 1/15/1977 Old Faithful 16:25 1:14 3:54 16:19 16:21 1/16/1977 Old Faithful 8:45 ~3:45 8:37 1/16/1977 Old Faithful 10:04 1:19 4:07 9:52 9:56 1/16/1977 Old Faithful 11:15 1:11 ~3:45 11:13 11:16 1/16/1977 Old Faithful 12:34 1:19 3:35 12:24 12:26 1/16/1977 Old Faithful 13:42 1:08 4:12 13:38 13:42 1/16/1977 Old Faithful 15:02 1:20 3:58 14:54 14:55 1/16/1977 Old Faithful 16:05 1:03 4:23 16:04 16:12 1/16/1977 Old Faithful 17:22 1:17 2:19 17:15 17:21 1/16/1977 Old Faithful 18:19 0:57 Long 18:09 18:14 1/16/1977 Lion 10:15 1/17/1977 Old Faithful 9:16 4:40 9:14 1/17/1977 Old Faithful 10:29 1:13 3:26 10:29 10:33 1/17/1977 Old Faithful 11:42 1:13 4:05 11:35 11:34 1/17/1977 Old Faithful 12:49:00 1:07 ~4:20 12:47 12:54 1/17/1977 Old Faithful 14:12 1:23 3:36 14:03 14:03 1/17/1977 Old Faithful 15:27 1:15 4:24 15:13 15:19 1/17/1977 Old Faithful 16:36 1:09 4:03 16:28 16:42 1/17/1977 Old Faithful 17:42 1:06 3:50 17:48 1/17/1977 Beehive 15:04 1/17/1977 Grand 15:59 ie 1/18/1977 Old Faithful 9:00 long 1/18/1977 Old Faithful 10:17 1:17 1:55 10:08 10:10 1/18/1977 Old Faithful 11:03 0:46 4:24 11:03 11:07 1/18/1977 Old Faithful 12:30 1:27 long 12:20 12:18 1/18/1977 Old Faithful 13:35 1:05 3:46 13:31 13:40 1/18/1977 Old Faithful 15:01 1:26 2:15 14:43 14:45 1/18/1977 Old Faithful 15:56 0:55 4:05 15:44 15:53 1/18/1977 Old Faithful 17:19 1:23 ~3 1/2 17:07 1/18/1977 Old Faithful 18:23 1:04 1823(<1min) 18:24 1/18/1977 Depression 17:23 1/18/1977 Giantess 10:18 (~7min) 1/18/1977 Giantess 10:52 1/18/1977 Giantess 11:20 1/18/1977 Giantess 11:55 1/18/1977 Giantess 12:59 1/18/1977 Giantess 14:52 1/18/1977 Giantess 16:00 1/18/1977 Giantess 17:13 (~8min) 1/18/1977 Plume 10:25 1/18/1977 Plume 10:51 1/18/1977 Vault 10:11 ie 1/19/1977 Old Faithful 8:56 4:17 8:45 1/19/1977 Old Faithful 10:08 1:12 1:52 10:08 10:08 1/19/1977 Old Faithful 10:56 0:48 4:23 10:55 10:57 1/19/1977 Old Faithful 12:10 1:14 3:19 12:10 12:11 1/19/1977 Old Faithful 13:24 1:14 ~4:01 13:14 13:20 1/19/1977 Old Faithful 14:30 1:06 3:53 14:30 14:30 1/19/1977 Old Faithful 15:43 1:13 3:58 15:36 15:38 1/19/1977 Old Faithful 16:50 1:07 3:56 16:48 16:51 1/19/1977 Old Faithful 17:59 1:09 18:02 1/19/1977 Castle 16:53 1/19/1977 Depression 10:09 1/19/1977 Depression 15:18 1/19/1977 Giantess 13:15 VR 1/19/1977 Grand 14:20 1/19/1977 Plume 10:08 1/19/1977 Plume 10:34 1/19/1977 Plume 10:57 1/20/1977 Old Faithful 8:56 long 1/20/1977 Old Faithful 10:11 1:15 2:29 10:06 9:56 1/20/1977 Old Faithful 10:57 0:46 4:19 10:55 11:03 1/20/1977 Old Faithful 12:20 1:23 3:52 12:06 12:10 1/20/1977 Old Faithful 13:30 1:10 3:35 13:25 13:32 1/20/1977 Old Faithful 14:40 1:10 3:29 14:36 14:40 1/20/1977 Old Faithful 15:54 1:14 4:07 15:46 15:50 1/20/1977 Old Faithful 17:26 1:32 3:53 16:58 17:06 1/20/1977 Old Faithful 18:25 0:59 ~4 1/4 none 18:38 1/20/1977 Beehive 8:45 ie 1/20/1977 Castle 11:20 in steam 1/20/1977 Depression 12:21 1/20/1977 Depression 17:11 1/21/1977 Old Faithful 9:52 3:46 1/21/1977 Old Faithful 10:58 1:06 2:58 10:52 11:00 1/21/1977 Old Faithful 12:09 1:11 3:50 12:04 12:00 1/21/1977 Old Faithful 13:19 1:10 ~4:00 13:19 13:19 1/21/1977 Old Faithful 14:39 1:20 ~4:05 14:26 14:29 1/21/1977 Old Faithful 15:53 1:14 3:39 15:44 15:50 1/21/1977 Old Faithful 17:05 1:12 17:03 1/21/1977 Castle 13:32 1/21/1977 Depression 14:40 ie 1/22/1977 Old Faithful 9:34 ~4:01 9:28 1/22/1977 Old Faithful 10:48 1:14 4:13 10:44 10:44 1/22/1977 Old Faithful 12:06 1:18 2:10 ~11:59 12:00 1/22/1977 Old Faithful 12:50 0:44 ~3:50 ? 12:58 1/22/1977 Old Faithful 14:04 1:14 3:25 14:01 1/22/1977 Old Faithful 15:20 1:16 3:54 15:06 15:10 1/22/1977 Old Faithful 16:29 1:09 3:45 16:29 1/22/1977 Beehive 14:40 180-190' impressive rainbow 1/22/1977 Castle 8:45 ie 1/22/1977 Lion 16:14 1/23/1977 Old Faithful ~08:10 1/23/1977 Old Faithful 10:15 4:31 10:09 1/23/1977 Old Faithful 11:28 1:13 ~4:00 11:26 11:30 1/23/1977 Old Faithful 12:44 1:16 ~3:48 12:32 12:40 1/23/1977 Old Faithful 14:01 1:17 ~2:04 13:53 13:50 1/23/1977 Old Faithful 14:58 0:57 ~3:27 14:48 14:54 1/23/1977 Old Faithful 16:21 1:23 1:45 16:05 16:03 1/23/1977 Old Faithful 17:11 0:50 Long 1/23/1977 Old Faithful 18:31 1:20 1/23/1977 Beehive 12:35 1/24/1977 Old Faithful 8:30 1/24/1977 Old Faithful 9:35 1:05 4:19 9:32 1/24/1977 Old Faithful 10:51 1:16 ~3:32 10:50 10:48 1/24/1977 Old Faithful 12:01 1:10 ~4:25 11:56 11:56 1/24/1977 Old Faithful 13:19 1:18 3:20 13:08 13:16 1/24/1977 Old Faithful 14:21 1:02 1:55 14:21 14:29 1/24/1977 Old Faithful 15:20 0:59 Long 15:07 15:11 1/24/1977 Old Faithful 16:32 1:12 4:40 None likely shorter dur 1/24/1977 Old Faithful 17:40 1:08 17:49 1/24/1977 Castle 14:19 ie 1/24/1977 Dome 14:10 1/24/1977 Grand 12:29 ie 1/25/1977 Old Faithful 9:13 long 1/25/1977 Old Faithful 10:28 1:15 long 10:23 10:23 1/25/1977 Old Faithful 11:38 1:10 3:56 11:28 11:38 1/25/1977 Old Faithful 12:47 1:09 4:13 12:37 12:50 1/25/1977 Old Faithful 13:59 1:12 3:58 13:55 14:03 1/25/1977 Old Faithful 15:19 1:20 3:45 15:08 15:11 1/25/1977 Old Faithful 16:37 1:18 4:15 16:28 16:29 1/25/1977 Old Faithful ~20:00 1/25/1977 Castle 9:30 1/25/1977 Plume 9:32 1/26/1977 Old Faithful 8:58 3:56 1/26/1977 Old Faithful 10:14 1:16 4:09 10:00 10:10 1/26/1977 Old Faithful 11:34 1:20 long 11:21 11:27 1/26/1977 Old Faithful 12:34 1:00 long 12:29 12:45 1/26/1977 Old Faithful 13:59 1:25 3:42 13:43 11:40 1/26/1977 Old Faithful 15:06 1:07 2:03 14:59 15:14 1/26/1977 Old Faithful 15:56 0:50 3:57 15:53 15:56 1/26/1977 Beehive 13:15 1/26/1977 Castle 12:30 1/26/1977 Little Squirt ~12:30 1/27/1977 Old Faithful ~09:26 3:20 1/27/1977 Old Faithful 10:30 ~1:04 4:01 10:30 10:30 1/27/1977 Old Faithful 11:45 1:15 3:59 11:39 11:42 1/27/1977 Old Faithful 13:08 1:23 4:09 12:57 12:57 1/27/1977 Old Faithful 14:27 1:19 3:39 14:14 14:21 1/27/1977 Old Faithful 15:36 1:09 4:22 None 15:34 1/27/1977 Old Faithful 17:05 1:29 4:21 16:42 16:49 1/27/1977 Beehive 11:15 ie 1/27/1977 Grand 11:27 VR 1/28/1977 Old Faithful 9:21 ~2:40 9:04 1/28/1977 Old Faithful 10:15 0:54 3:45 10:18 1/28/1977 Old Faithful 11:33 1:18 3:32 11:24 11:22 1/28/1977 Old Faithful 12:41 1:08 ~3:20 12:34 12:43 1/28/1977 Old Faithful 14:07 1:26 3:55 13:55 13:59 1/28/1977 Old Faithful 15:25 1:18 1:40 15:25 15:19 1/28/1977 Old Faithful 16:26 1:01 4:29 16:11 16:12 1/28/1977 Lion 13:46 ie 1/29/1977 Old Faithful ~08:52 1/29/1977 Old Faithful 9:48 ~0:56 4:29 9:45 10:02 1/29/1977 Old Faithful 11:02 1:14 2:06 10:59 11:03 1/29/1977 Old Faithful 11:57 0:55 3:56 11:49 11:55 1/29/1977 Old Faithful 13:18 1:21 4:27 13:09 1/29/1977 Old Faithful 14:35 1:17 3:54 14:23 14:30 1/29/1977 Old Faithful 15:45 1:10 1:45 15:39 15:46 1/29/1977 Old Faithful 16:32 0:47 ~4:48 16:32 16:33 1/29/1977 Old Faithful 17:51 1:19 Long ~4 17:43 17:50 1/29/1977 Old Faithful 19:01 1:10 4:19 19:03 1/29/1977 Old Faithful 20:17 1:16 1:44 20:12 20:14 1/29/1977 Old Faithful 21:08 0:51 4:48 21:04 1/29/1977 Beehive 11:47 1/29/1977 Castle 11:15 1/29/1977 Depression 10:36 1/29/1977 Fan & Mortar 16:20 ie 1st lull 16:36 1/29/1977 Grand 16:52 ie 1/29/1977 Grotto Fountain 16:45 1/29/1977 Lone Star ~10:00 1/29/1977 Riverside 12:15 1/30/1977 Old Faithful 9:15 3:42 1/30/1977 Old Faithful ~10:26 ~1:11 ~3:30 10:25 1/30/1977 Old Faithful 11:34 ~1:08 4:10 None 11:36 1/30/1977 Old Faithful 12:51 1:17 ~4:12 12:44 12:47 1/30/1977 Old Faithful 14:03 1:12 2:17 13:59 14:03 1/30/1977 Old Faithful 14:58 0:55 4:43 14:56 14:55 1/30/1977 Old Faithful 16:10 1:12 ~3:53 16:10 16:15 1/30/1977 Old Faithful 17:28 1:18 3:53 17:13 17:18 1/30/1977 Old Faithful 18:36 1:08 2:09 18:34 18:40 1/30/1977 Old Faithful 19:24 0:48 4:47 19:21 19:28 1/30/1977 Old Faithful 20:37 1:13 4:04 20:40 1/30/1977 Beehive 14:51 1/30/1977 Grand 11:11 ie 1/30/1977 Riverside 12:40 1/31/1977 Old Faithful ~08:06 1/31/1977 Old Faithful 10:09 ~1:03 ~2:50 10:00 1/31/1977 Old Faithful 11:26 1:17 4:21 11:10 11:05 1/31/1977 Old Faithful 12:38 1:12 3:54 12:32 12:39 1/31/1977 Old Faithful 13:59 1:21 4:10 13:42 13:49 1/31/1977 Old Faithful 15:18 1:19 4:13 15:05 15:11 1/31/1977 Old Faithful 16:39 1:21 3:03 16:20 16:31 1/31/1977 Old Faithful 17:40 1:01 4:01 17:40 (PP<1min) 17:52 1/31/1977 Old Faithful 18:54 1:14 4:20 18:45 18:52 1/31/1977 Old Faithful 20:04 1:10 4:32 20:01 20:07 1/31/1977 Old Faithful 21:19 1:15 long 21:15 21:19 1/31/1977 Castle 19:30 ie 1/31/1977 Grand 21:14 ie 1/31/1977 Riverside 13:11 2/1/1977 Old Faithful 8:55 4:28 2/1/1977 Old Faithful 10:11 1:16 3:41 10:03 10:10 2/1/1977 Old Faithful 11:20 1:09 3:35 11:17 11:15 2/1/1977 Old Faithful 12:29 1:09 3:35 12:27 12:26 2/1/1977 Old Faithful 13:38 1:09 <3:23 13:35 2/1/1977 Old Faithful 14:45 1:07 3:55 14:29 14:43 2/1/1977 Old Faithful 16:04 1:19 3:28 15:55 2/1/1977 Old Faithful 17:00 0:56 3:57 17:09 2/1/1977 Old Faithful 18:15 1:15 1:59 18:12 2/1/1977 Beehive 16:05 2/1/1977 Grand 12:38 ie 2/1/1977 Lion 13:16 ie 2/1/1977 Plume 8:30 2/1/1977 Plume 9:20 2/1/1977 Plume 10:05 2/1/1977 Plume 10:29 2/1/1977 Plume 16:56 2/1/1977 Plume 17:21 2/2/1977 Old Faithful 8:36 3:46 2/2/1977 Old Faithful 9:59 1:23 ~3:19 9:46 2/2/1977 Old Faithful 11:16 1:17 3:37 11:04 11:02 2/2/1977 Old Faithful 12:29 1:13 2:54crossed out 12:29 12:26 2/2/1977 Old Faithful 13:45 1:16 2:03 13:31 13:29 2/2/1977 Old Faithful 14:45 1:00 4:35 14:29 14:35 2/2/1977 Old Faithful 15:59 1:14 2:01 15:54 16:49 2/2/1977 Old Faithful 16:45 0:46 4:09 16:42 2/2/1977 Old Faithful 18:12 1:27 2:05 18:00 2/2/1977 Old Faithful 18:54 0:42 4:43 2/2/1977 Old Faithful 20:18 1:24 1:55 20:08 2/2/1977 Old Faithful 21:14 0:56 4:25 21:02 2/2/1977 Beehive 9:35 2/2/1977 Beehive 20:56 2/2/1977 Castle 8:25 2/2/1977 Castle 17:45 ie 2/2/1977 Grand 14:30 ie 3b 2/3/1977 Old Faithful ~09:48 ~3:31 2/3/1977 Old Faithful 10:58 ~1:10 1:51 11:56not typo 10:55 2/3/1977 Old Faithful 11:46 0:48 ~3:41 11:41 11:49 2/3/1977 Old Faithful 13:00 1:14 ~3:01 12:56 12:52 2/3/1977 Old Faithful 14:19 1:19 4:14 13:59 14:01 2/3/1977 Old Faithful 15:34 1:15 3:57 15:20 15:22 2/3/1977 Old Faithful 16:49 1:15 4:09 16:46 2/3/1977 Old Faithful 18:00 1:11 4:17 17:54 18:01 2/3/1977 Old Faithful 19:10 1:10 4:14 19:01 2/3/1977 Old Faithful 20:28 1:18 4:09 2/3/1977 Old Faithful 21:50 1:22 4:06 2/3/1977 Old Faithful 22:51 1:01 4:09 none 2/3/1977 Old Faithful 24:08not typo 1:17 2:50 2/3/1977 Beehive 11:50 2/3/1977 Castle 10:25 ie 2/3/1977 Castle 21:10 ie 2/3/1977 Grand 13:26 ie 2/3/1977 Grand 22:48 ie 2/3/1977 Round 21:48 2/4/1977 Old Faithful 9:45 3:37 2/4/1977 Old Faithful 10:59 1:14 3:31 10:47 10:55 2/4/1977 Old Faithful 12:19 1:20 3:29 12:07 12:09 2/4/1977 Old Faithful 13:36 1:17 4:11 13:24 13:29 2/4/1977 Old Faithful 14:50 1:14 4:01 14:41 14:49 2/4/1977 Old Faithful 16:00 1:10 3:54 16:02 2/4/1977 Old Faithful 17:09 1:09 3:36 17:03 17:09 2/4/1977 Old Faithful 18:16 1:07 4:21 18:13 18:15 2/4/1977 Beehive 16:53 D=5m03 2/4/1977 Castle 15:04 2/4/1977 Depression 14:04 2/4/1977 Grand 15:04 2/5/1977 Old Faithful 8:53 4:17 8:40 2/5/1977 Old Faithful 10:03 1:10 3:44 9:59 10:06 2/5/1977 Old Faithful 11:16 1:13 3:14 11:11 11:14 2/5/1977 Old Faithful 12:28 1:12 2:42 12:18 12:20 2/5/1977 Old Faithful 13:29 1:01 4:38 13:13 13:25 2/5/1977 Old Faithful 14:45 1:16 1:52 14:43 14:45 2/5/1977 Old Faithful 15:36 0:51 ~4:00 15:29 15:34 2/5/1977 Old Faithful 17:06 1:30 2:18 16:48 16:48 2/5/1977 Old Faithful 17:53 0:47 4:39 17:59 2/5/1977 Old Faithful 19:06 1:13 4:05 19:09 2/5/1977 Old Faithful 20:20 1:14 ~4 1/4 218not typo 2/5/1977 Old Faithful 21:31 1:11 3:57 2/5/1977 Beehive 20:21 "48sec after start of OF,D=5m13" 2/5/1977 Castle 9:20 ie 2/5/1977 Dome 17:00 ie 2/5/1977 Giantess 12:52 small burst 2/5/1977 Giantess 15:49 15-60' high all day 2/5/1977 Giantess 19:04 2/5/1977 Giantess 20:29 2/5/1977 Giantess 21:26 2/5/1977 Lion 16:00 ie 2/6/1977 Old Faithful 8:17 2:04 8:16 2/6/1977 Old Faithful 9:07 0:50 4:39 8:58 9:07 2/6/1977 Old Faithful 10:18 1:11 ~3:25 10:22 2/6/1977 Old Faithful 11:34 1:16 3:53 11:25 11:29 2/6/1977 Old Faithful 12:49 1:15 3:56 12:35 12:44 2/6/1977 Old Faithful 14:00 1:11 3:45 13:51 13:58 2/6/1977 Old Faithful 15:04 1:04 4:01 14:52 15:08 2/6/1977 Old Faithful 16:23 1:19 3:17 16:06 2/6/1977 Old Faithful 17:24 1:01 3:28 17:28 2/6/1977 Old Faithful 18:41 1:17 3:59 18:34 2/6/1977 Old Faithful 19:51 1:10 2:13 19:53 2/6/1977 Old Faithful 20:41 0:50 4:23 20:42 2/6/1977 Beehive 16:40 2/6/1977 Castle 12:15 ie 2/6/1977 Giantess 8:02 2/6/1977 Giantess 8:35 2/6/1977 Giantess 8:57 2/6/1977 Giantess 9:22 2/6/1977 Giantess 10:28 2/6/1977 Giantess 11:28 2/6/1977 Giantess 12:51 D=7m56 2/6/1977 Giantess 13:35 (~8) 2/6/1977 Giantess 14:12 (~7) 2/6/1977 Giantess 14:53 (~8) 2/6/1977 Giantess 15:49 2/6/1977 Giantess 17:09 2/6/1977 Dome active AM 2/6/1977 Grand 8:31 ie 3b 2/6/1977 Plume 8:38 2/6/1977 Plume 9:02 2/6/1977 Plume 12:28 2/6/1977 Plume 12:51 2/6/1977 Plume 13:15 2/6/1977 Plume 13:38 2/6/1977 Plume 14:01 2/6/1977 Plume 14:50 2/6/1977 Plume 15:36 2/6/1977 Plume 16:49 2/6/1977 Plume 17:09 2/6/1977 Rocket 9:35 2/6/1977 Vault 12:31 2/6/1977 Giantess 18:35 D~5m 2/7/1977 Old Faithful 9:51 long 2/7/1977 Old Faithful 10:55 1:04 3:41 11:01 2/7/1977 Old Faithful 12:06 1:11 3:50 12:02 2/7/1977 Old Faithful 13:17 1:11 4:03 13:12 15:10 2/7/1977 Old Faithful 14:27 1:10 2:09 14:23 2/7/1977 Old Faithful 15:15 0:48 4:10 15:12 2/7/1977 Old Faithful 16:33 1:18 3:22 16:26 2/7/1977 Old Faithful 17:36 1:03 3:46 2/7/1977 Old Faithful 18:40 1:04 Long 2/7/1977 Beehive 12:35 "D=5m03,steam1m41" 2/7/1977 Beehive's Indicator 12:20 ie 2/7/1977 Castle 14:44 ie 2/7/1977 Depression 13:36 2/7/1977 Dome active 2/7/1977 Aurum 11:22 2/8/1977 Old Faithful 8:29 ~3:35 2/8/1977 Old Faithful 9:45 1:16 4:19 9:25 9:39 2/8/1977 Old Faithful 10:55 1:10 1:31 10:50 10:57 2/8/1977 Old Faithful 11:45 0:50 4:23 11:45 11:45 2/8/1977 Old Faithful 13:02 1:17 3:52 12:59 2/8/1977 Old Faithful 14:21 1:19 2:05 14:11 2/8/1977 Old Faithful 15:04 0:43 4:11 15:13 2/8/1977 Old Faithful 16:30 1:26 2:24 16:20:00 16:25 2/8/1977 Old Faithful 17:24 0:54 4:28 17:14:00 17:24 2/8/1977 Old Faithful 18:35 1:11 4:03 18:33:00 18:39 2/8/1977 Beehive 13:09 2/8/1977 Castle 9:45 ie 2/8/1977 Castle 18:34 2/8/1977 Depression 10:22 2/9/1977 Old Faithful 8:49 4:04 2/9/1977 Old Faithful 10:03 1:14 2:10 9:51 2/9/1977 Old Faithful 10:59 0:56 4:22 10:43 10:54 2/9/1977 Old Faithful 12:06 1:07 4:05 12:05 12:13 2/9/1977 Old Faithful 13:19 1:13 3:51 13:12 12:17 2/9/1977 Old Faithful 14:26 1:07 2:52 2/9/1977 Old Faithful 15:27 1:01 4:31 15:21 15:23 2/9/1977 Old Faithful 16:49 1:22 4:13 16:41 16:42 2/9/1977 Beehive 10:40 2/9/1977 Castle 12:55 ie 2/9/1977 Grand 9:21 ie 2/9/1977 Lion 9:32 2/9/1977 Spiteful 15:00 2/10/1977 Old Faithful 8:52 4:02 2/10/1977 Old Faithful 10:02 1:10 3:32 10:01 2/10/1977 Old Faithful 11:11 1:09 ~4:00 11:07 2/10/1977 Old Faithful 12:19 1:08 4:10 12:21 2/10/1977 Old Faithful 13:27 1:08 2:29 13:26 13:31 2/10/1977 Old Faithful 14:29 1:02 4:26 14:19 2/10/1977 Old Faithful 15:54 1:25 3:51 15:33 2/10/1977 Old Faithful 17:07 1:13 ~3:52 16:59 17:01 2/10/1977 Old Faithful 18:19 1:12 ~4 18:16 3m38sPP 2/10/1977 Old Faithful 19:31 1:12 3:41 19:25 2/10/1977 Old Faithful 20:41 1:10 Long 20:39 2/10/1977 Beehive 15:12 "D=4m46,steam 2m26" 2/10/1977 Beehive's Indicator 14:59 2/10/1977 Castle 8:40 ie 2/10/1977 Castle 15:55 ie 2/10/1977 Little Cub 16:13 2/11/1977 Old Faithful 8:28 2/11/1977 Old Faithful 9:25 0:57 ~3:40 2/11/1977 Old Faithful 10:49 1:24 4:04 10:34 10:33 2/11/1977 Old Faithful 12:00 1:11 4:09 11:55 12:00 2/11/1977 Old Faithful 13:16 1:16 4:15 13:10 2/11/1977 Old Faithful 14:32 1:16 3:39 14:24 2/11/1977 Old Faithful 15:46 1:14 4:14 15:35 15:40 2/11/1977 Old Faithful 17:09 1:23 1:44 16:55 17:00 2/11/1977 Beehive 13:30 ie 2/11/1977 Castle 11:15 ie steamphase 2/11/1977 Grand 16:10 ie 2/12/1977 Old Faithful 7:25 long 2/12/1977 Old Faithful 8:38 1:13 3:37 8:36 2/12/1977 Old Faithful 9:45 1:07 long 9:40 9:48 2/12/1977 Old Faithful 11:01 1:16 3:48 10:53 10:58 2/12/1977 Old Faithful 12:15 1:14 ~4:09 12:11 12:11 2/12/1977 Old Faithful 13:27 1:12 3:47 13:27 2/12/1977 Old Faithful 14:47 1:20 3:50 14:35 14:38 2/12/1977 Old Faithful 15:54 1:07 4:09 15:52 15:59 2/12/1977 Old Faithful 17:04 1:10 2:36 17:02 17:05 2/12/1977 Old Faithful 17:58 0:54 4:13 17:58 >1mPP 18:00 2/12/1977 Old Faithful 19:12 1:14 4:01 19:09 19:11 2/12/1977 Beehive 14:30 2/12/1977 Castle 14:37 2/12/1977 Depression 13:22 2/13/1977 Old Faithful 9:00 3:15 2/13/1977 Old Faithful 10:13 1:13 3:57 10:05 10:03 2/13/1977 Old Faithful 11:24 1:11 3:51 11:24 2/13/1977 Old Faithful 12:35 1:11 3:41 12:40 2/13/1977 Old Faithful 13:46 1:11 2:25 13:39 13:41 2/13/1977 Old Faithful 14:53 1:07 ~3:28 14:35 14:41 2/13/1977 Old Faithful 16:10 1:17 3:55 15:59 15:58 2/13/1977 Old Faithful 17:13 1:03 4:09 none 17:06 2/13/1977 Beehive 13:42 2/14/1977 Old Faithful 9:17 ~2:55 2/14/1977 Old Faithful 10:18 1:01 ~4:00 10:17 2/14/1977 Old Faithful 11:37 1:19 ~3:30 11:28 2/14/1977 Old Faithful 12:48 1:11 4:05 12:39 12:47 2/14/1977 Old Faithful 14:02 1:14 ~4:00 13:57 13:59 2/14/1977 Old Faithful 15:10 1:08 ~2:58 15:10 15:12 2/14/1977 Old Faithful 16:27 1:17 4:02 16:17 16:19 2/15/1977 Old Faithful 8:54 ~3:35 2/15/1977 Old Faithful 10:06 1:12 ~3:55 10:00 10:00 2/15/1977 Old Faithful 11:16 1:10 3:57 11:14 11:14 2/15/1977 Old Faithful 12:31 1:15 3:48 12:24 12:28 2/15/1977 Old Faithful 13:40 1:09 1:56 13:29 13:41 2/15/1977 Old Faithful 14:37 0:57 4:25 14:25 14:30 2/15/1977 Old Faithful 15:56 1:19 3:24 15:48 15:52 2/15/1977 Beehive 8:47:00 2/16/1977 Old Faithful 9:28 3:19 9:18 2/16/1977 Old Faithful 10:43 1:15 4:48 10:29 10:36 2/16/1977 Old Faithful 11:55 1:12 2:11 11:52 11:52 2/16/1977 Old Faithful 12:43 0:48 ~4:30 none 12:47 2/16/1977 Old Faithful 13:59 1:16 3:32 13:54 13:58 2/16/1977 Old Faithful 15:04:00 1:05 4:01 14:59 15:09 2/16/1977 Old Faithful 16:24 1:20 4:05 16:11 16:14 2/16/1977 Old Faithful 17:40 1:16 4:03 17:31 17:36 2/16/1977 Old Faithful 18:55 1:15 2:02 18:52 2/16/1977 Old Faithful 19:47 0:52 4:25 19:38 19:45 2/16/1977 Old Faithful 21:15 1:28 3:52 20:58 2/16/1977 Beehive 12:30 2/16/1977 Castle 13:24 ie 2/16/1977 Fan & Mortar 10:45 ieVR 2/17/1977 Old Faithful 8:52 3:58 2/17/1977 Old Faithful 10:00 1:08 ~2:55 9:56 10:04 2/17/1977 Old Faithful 11:20 1:20 3:45 11:11 11:05 2/17/1977 Old Faithful 12:25 1:05 4:08 12:30 2/17/1977 Old Faithful 13:36 1:11 4:07 13:34 13:35 2/17/1977 Old Faithful 14:45 1:09 3:35 14:41 14:47 2/17/1977 Old Faithful 15:50 1:05 3:40 15:50 15:50 2/17/1977 Old Faithful 16:59 1:09 17:00 2/17/1977 Old Faithful 18:02 1:03 4:06 <1min 2/17/1977 Old Faithful 19:14 1:12 3:49 3:49 2/17/1977 Beehive 10:47 2/17/1977 Castle 8:20 2/17/1977 Castle 17:15 ie 2/17/1977 Depression 17:55 2/17/1977 "Fan,Mortar, Spiteful" 10:00 2/18/1977 Old Faithful 9:24 3:15 9:15 2/18/1977 Old Faithful 10:31 1:07 2:40 10:27 10:27 2/18/1977 Old Faithful 11:19 0:48 4:00 ? 11:25 2/18/1977 Old Faithful 12:34 1:15 3:20 12:33 12:30 2/18/1977 Old Faithful 13:51 1:17 3:36 13:39 13:44 2/18/1977 Old Faithful 15:01 1:10 4:10 14:53 15:00 2/18/1977 Old Faithful 16:19 1:18 1:48 none 16:12 2/18/1977 Old Faithful 17:15 0:56 4:06 16:58 17:06 2/18/1977 Old Faithful 18:44 1:29 3:51 18:24 18:27 2/18/1977 Old Faithful 19:47 1:03 Long 19:52 2/18/1977 Beehive 10:45 ie 2/18/1977 Castle 11:36 ie 2/18/1977 Depression 9:50 2/18/1977 Giantess 11:55 water type 2/18/1977 Giantess 12:28 2nd burst(D~19min) 2/18/1977 Giantess 16:28 2/18/1977 Giantess 16:39 2/18/1977 Giantess 16:59 2/18/1977 Giantess 18:44 2/18/1977 Grand 12:35 4 bursts 2/18/1977 Vault 16:28 2/19/1977 Old Faithful ~08:24 8:04 2/19/1977 Old Faithful 9:44 ~1:20 long 08:43not typo 2/19/1977 Old Faithful 11:01 1:17 4:30 10:49 10:59 2/19/1977 Old Faithful 12:12 1:11 1:47 12:16 12:16 2/19/1977 Old Faithful 13:14 1:02 4:30 1:03not typo 13:02 2/19/1977 Old Faithful 14:37 1:23 2:05 14:23 14:29 2/19/1977 Old Faithful 15:29 0:52 4:37 15:17 15:28 2/19/1977 Old Faithful 16:42 1:13 3:35 16:43 2/19/1977 Old Faithful 17:47 1:05 4:08 17:44 17:50 2/19/1977 Old Faithful 19:02 1:15 4:07 2/19/1977 Old Faithful 20:23 1:21 3:52 2/19/1977 Beehive 12:01 2/19/1977 Giantess 11:33 2/19/1977 Giantess 12:33 2/19/1977 Giantess 1:03not typo 2/19/1977 Giantess 17:44 to1752 (8+min) 2/19/1977 Grand 11:13 2/19/1977 Grand 18:51 ie 3b 2/20/1977 Old Faithful 9:01 long 2/20/1977 Old Faithful 10:11 1:10 ~3:58 10:10 10:11 2/20/1977 Old Faithful 11:32 1:21 4:10 11:18 11:21 2/20/1977 Old Faithful 12:38 1:06 4:04 12:35 12:44 2/20/1977 Old Faithful 13:56 1:18 4:14 12:49 13:49 2/20/1977 Old Faithful 15:14 1:18 long 15:04 15:02 2/20/1977 Old Faithful 16:13 0:59 4:39 16:06 16:26 2/20/1977 Old Faithful 17:33 1:20 3:54 18:39 17:28 2/20/1977 Old Faithful 18:44 1:11 1:58 18:45 2/20/1977 Beehive 10:39 "D=4m52,steam2m42" 2/20/1977 Beehive's Indicator 10:36 2/20/1977 Castle 9:00 ie 2/20/1977 Depression 14:58 2/20/1977 Grand 11:36 ie 2b 2/21/1977 Old Faithful 8:57 3:56 ? 2/21/1977 Old Faithful 10:03 1:06 3:52 9:58 10:09 2/21/1977 Old Faithful 11:21 1:18 3:57 11:13 11:13 2/21/1977 Old Faithful 12:33 1:12 long 12:33 2/21/1977 Old Faithful 13:39 1:06 4:14 13:38 13:45 2/21/1977 Old Faithful 14:58 1:19 4:06 14:46 14:53 2/21/1977 Old Faithful 16:12 1:14 4:16 16:06 16:10 2/21/1977 Old Faithful 17:24 1:12 4:13 17:21 17:23 2/21/1977 Beehive 13:54 ie 2/21/1977 Castle 13:55 ie 2/21/1977 Castle 23:00 2/21/1977 Dome activePM 2/21/1977 Lion 9:36 2/21/1977 Lion 12:40 2/21/1977 Lion 16:18 2/21/1977 Lion 15:03 2/21/1977 Oblong 16:11 2/21/1977 Rift 16:11 2/22/1977 Old Faithful 8:30 Long 2/22/1977 Old Faithful 9:47 1:17 1:54 9:41 9:41 2/22/1977 Old Faithful 10:33 0:46 4:48 10:33 2/22/1977 Old Faithful 11:53 1:20 2:34 11:46 11:51 2/22/1977 Old Faithful 12:58 1:05 4:38 12:39 12:45 2/22/1977 Old Faithful 14:19 1:21 4:10 14:08 14:14 2/22/1977 Old Faithful 15:35 1:16 1:43 15:32 2/22/1977 Old Faithful 16:41 1:06 4:32 16:24 16:22 2/22/1977 Old Faithful 17:53 1:12 2:05 17:37 17:53 2/22/1977 Old Faithful 18:46 0:53 ~4 3/4 18:36 18:43 2/22/1977 Castle 8:10 ie 2/22/1977 Castle 18:00 ie 2/22/1977 Depression 9:27 2/22/1977 Grand 11:00 ie 2/22/1977 Grand 18:13 ie 2/22/1977 Lion 14:31 2/22/1977 Round 11:11 2/22/1977 Dome AM ie 2/23/1977 Old Faithful 9:31 4:07 9:30 2/23/1977 Old Faithful 10:42 1:11 2:06 10:39 10:43 2/23/1977 Old Faithful 11:44 1:02 4:36 11:32 11:32 2/23/1977 Old Faithful 13:05:00 1:21 4:09 12:53 12:59 2/23/1977 Old Faithful 14:12 1:07 4:20 none 14:18 2/23/1977 Old Faithful 15:30 1:18 1:33 15:21 15:25 2/23/1977 Old Faithful 16:15 0:45 4:16 16:14 16:14 2/23/1977 Old Faithful 17:29 1:14 3:46 17:28 17:28 2/23/1977 Old Faithful 18:36 1:07 4:10 18:39 18:39 2/23/1977 Old Faithful 19:47 1:11 2:37 19:49 19:49 2/23/1977 Old Faithful 20:43 0:56 4:45 20:42 20:42 2/23/1977 Beehive 12:18 2/24/1977 Old Faithful 9:12 long 2/24/1977 Old Faithful 10:31 1:19 2:45 10:21 10:22 2/24/1977 Old Faithful 11:25 0:54 4:30 11:15 11:28 2/24/1977 Old Faithful 12:35 1:10 3:51 12:35 12:40 2/24/1977 Old Faithful 13:51 1:16 4:15 13:44 13:47 2/24/1977 Old Faithful 15:02 1:11 4:50 14:59 15:03 2/24/1977 Old Faithful 16:09 1:07 3:50 16:08 16:09 2/24/1977 Old Faithful 17:16 1:07 3:46 17:12 17:19 2/24/1977 Old Faithful 18:25 1:09 3:37 18:21 18:23 2/24/1977 Beehive 17:15 "D=4m36,start 60sec before OF,steam 4m19" 2/24/1977 Beehive's Indicator 16:56 2/24/1977 Castle 15:03 2/24/1977 Riverside 16:23 VR 2/25/1977 Old Faithful 9:35 ~4:00 9:33 2/25/1977 Old Faithful 10:47 1:12 ~2:55 10:46 10:45 2/25/1977 Old Faithful 11:42 0:55 4:34 11:27 11:47 2/25/1977 Old Faithful 13:00 1:18 3:36 12:52 12:57 2/25/1977 Old Faithful 14:13 1:13 4:15 14:05 14:10 2/25/1977 Old Faithful 15:35 1:22 4:17 15:21 15:26 2/25/1977 Old Faithful 16:46 1:11 3:52 16:45 16:48 2/25/1977 Old Faithful 17:51 1:05 3:43 17:49 18:00 2/25/1977 Old Faithful 19:21 1:30 3:50 19:01 2/25/1977 Beehive 10:00 2/25/1977 Beehive's Indicator 9:50 2/25/1977 Depression 11:02 ie 2/25/1977 Riverside 11:15 VR 2/25/1977 Riverside 16:56 VR 2/26/1977 Old Faithful 9:03 3:39 ? 2/26/1977 Old Faithful 10:11 1:08 4:07 10:04 10:13 2/26/1977 Old Faithful 11:23 1:12 11:21 11:23 2/26/1977 Old Faithful 12:42 1:19 ~2:00 12:36 2/26/1977 Old Faithful 13:32 0:50 4:13 13:28 13:32 2/26/1977 Old Faithful 14:55 1:23 1:39 14:54 14:45 2/26/1977 Old Faithful 15:44 0:49 4:22 none 15:42 2/26/1977 Old Faithful 16:56 1:12 ~3:50 16:47 16:59 2/26/1977 Old Faithful 18:13 VR 1:17 3:58 17:56 18:06 2/26/1977 Castle 13:43 ie 2/26/1977 Lion 11:20 ie 2/26/1977 Lion 13:27 ie 2/26/1977 Lion 14:02 ie 2/26/1977 Lion 14:48 2/26/1977 Riverside 10:30 2/27/1977 Old Faithful 8:12 Long 2/27/1977 Old Faithful 9:20 1:08 3:56 9:15 Low -20F 9:22 2/27/1977 Old Faithful 10:36 1:16 4:03 10:26 10:30 2/27/1977 Old Faithful 11:55 1:19 4:32 11:44 11:47 2/27/1977 Old Faithful 13:05 1:10 3:43 13:03 13:10 2/27/1977 Old Faithful 14:21 1:16 4:04 14:14 14:12 2/27/1977 Old Faithful 15:28 1:07 3:57 ? 15:35 2/27/1977 Old Faithful 16:38 1:10 3:25 16:33 16:40 17:56 4:16 17:46 17:43 2/27/1977 Beehive 11:30 "D=4m53,steam2m41" 2/27/1977 Beehive's Indicator 11:20 2/27/1977 Castle 8:09 ie 2/27/1977 Depression 11:32 D=2m49 2/27/1977 Grand 8:09 ie 2/27/1977 Grand 16:43 ieVR 2/27/1977 Riverside 10:30 VR 2/28/1977 Old Faithful 7:59 3:52 2/28/1977 Old Faithful 9:06 1:07 2:01 9:06 9:09 2/28/1977 Old Faithful 10:00 0:54 4:07 9:59 9:56 2/28/1977 Old Faithful 11:14 1:14 4:17 11:13 11:12 2/28/1977 Old Faithful 12:36 1:22 4:30 12:25 12:27 2/28/1977 Old Faithful 13:51 1:15 short 13:40 13:51 2/28/1977 Old Faithful 14:40 0:49 4:32 14:25 14:42 2/28/1977 Old Faithful 15:56 1:16 4:20 15:53 15:55 2/28/1977 Old Faithful 17:06 1:10 4:15 17:10 2/28/1977 Old Faithful 18:18 1:12 4:06 18:15 18:18 2/28/1977 Old Faithful 19:42 1:24 4:05 19:30 2/28/1977 Beehive 11:40 3/1/1977 Old Faithful 8:41 4:15 8:29 3/1/1977 Old Faithful 9:49 1:08 4:10 9:51 3/1/1977 Old Faithful 10:59 1:10 4:15 10:54 11:01 3/1/1977 Old Faithful 12:06 1:07 4:05 none 12:05 3/1/1977 Old Faithful 13:21 1:15 2:35 13:14 13:17 3/1/1977 Old Faithful 14:15 0:54 ~4:00 14:19 3/1/1977 Old Faithful 15:37 1:22 4:10 15:26? 15:25 3/1/1977 Old Faithful 16:52 1:15 4:30 16:45 16:49 3/1/1977 Beehive 8:01 3/1/1977 Castle 13:24 3/1/1977 Dome Active 3/1/1977 Grand 8:16 ie 3/1/1977 Plume 8:05 3/1/1977 Plume 8:32 3/2/1977 Old Faithful 9:10 Long 10:17 3/2/1977 Old Faithful 10:21 1:11 4:10 11:29 10:15 3/2/1977 Old Faithful 11:30 1:09 3;58 11:33 3/2/1977 Old Faithful 12:44 1:14 4:08 12:36 12:42 3/2/1977 Old Faithful 14:07 1:23 ~4:41 13:57 3/2/1977 Old Faithful 15:33 1:26 3:34 15:25 15:24 3/2/1977 Old Faithful 16:37 1:04 3:29 16:37 16:43 3/2/1977 Beehive 15:20 3/2/1977 Castle 16:28 VR 3/2/1977 Grand 13:45 VR 3/2/1977 Great Fountain 15:46 VR 3/2/1977 Oblong 15:45 VR 3/2/1977 Riverside 14:25 vr 3/2/1977 Spiteful 15:05 VR 3/3/1977 Old Faithful 8:58 4:17 8:44 3/3/1977 Old Faithful 10:06 1:08 2:46 10:03 10:11 3/3/1977 Old Faithful 11:01 0:55 ~4:00 none 11:01 3/3/1977 Old Faithful 12:17 1:16 4:05 12:10 12:12 3/3/1977 Old Faithful 13:33 1:16 3:47 13:16 13:28 3/3/1977 Old Faithful 14:45 1:12 2:10 14:39 14:43 3/3/1977 Old Faithful 15:52 1:07 4:21 15:47 15:37 3/3/1977 Old Faithful 17:04 1:12 4:16 17:05 3/3/1977 Old Faithful 18:12 1:08 3:53 18:17 3/3/1977 Old Faithful 19:19 1:07 3:51 19:12 19:19 3/3/1977 Old Faithful 20:33 1:14 ~4 20:28 3/3/1977 Beehive 12:37 "5m32,steam2m26" 3/3/1977 Beehive's Indicator 12:34 ie 3/3/1977 Grand 14:39 ie 3/3/1977 Lion 4:19 3/4/1977 Old Faithful 9:12 ~2:11 ? 3/4/1977 Old Faithful 10:08 0:56 4:47 10:02 10:04 3/4/1977 Old Faithful 11:29 1:21 3:36 11:16 11:24 3/4/1977 Old Faithful 12:39 1:10 4:07 12:35 12:39 3/4/1977 Old Faithful 13:47 1:08 3:39 13:46 13:50 3/4/1977 Old Faithful 14:54 1:07 4:30 14:48 14:57 3/4/1977 Old Faithful 16:09 1:15 2:40 16:07 16:09 3/4/1977 Old Faithful 17:05 0:56 3:59 16:52 17:06 3/4/1977 Old Faithful 18:13 1:08 3:53 18:13 18:15 3/4/1977 Old Faithful 19:29 1:16 Long 3/4/1977 Aurum 17:26 3/4/1977 Beehive 17:17 "D=4m54,steam3m20" 3/4/1977 Daisy & Splendid before 16:00 erupted within the last 30 hrs 3/4/1977 Depression 10:14 3/4/1977 Depression 17:27 3/4/1977 Grand 10:15 3/4/1977 Grand 18:18 ie 3/5/1977 Old Faithful 9:00 ~4:00 3/5/1977 Old Faithful 10:16 1:16 ~4:10 10:10 3/5/1977 Old Faithful 11:31 1:15 3:56 11:19 11:30 3/5/1977 Old Faithful 12:44 1:13 3:48 12:36 12:43 3/5/1977 Old Faithful 13:56 1:12 3:47 13:51 13:54 3/5/1977 Old Faithful 15:08 1:12 2:00 15:08 15:06 3/5/1977 Old Faithful 16:01 0:53 3;50 15:54 15:58 3/5/1977 Old Faithful 17:21 1:20 4:04 17:06 17:11 3/5/1977 Beehive 10:24 3/5/1977 Castle 8:45 ie 3/5/1977 Castle 17:15 ie 3/5/1977 Grand ~10:30 ieVR 3/6/1977 Old Faithful 9:31 1:46 3/6/1977 Old Faithful 10:09 0:38 ~4:00 10:21 3/6/1977 Old Faithful 11:34 1:25 2:09 11:21 11:21 3/6/1977 Old Faithful 12:18 0:44 4:13 12:26 3/6/1977 Old Faithful 13:44 1:26 3:44 13:31 13:31 3/6/1977 Old Faithful 14:58 1:14 1:50 14:51 14:54 3/6/1977 Old Faithful 15:49 0:51 long 15:45 3/6/1977 Old Faithful 17:14 1:25 1:57 17:03 17:03 3/6/1977 Old Faithful 18:01 0:47 4:20 17:55 18:04 3/6/1977 Old Faithful 19:09 1:08 3:37 <1min 19:14 3/6/1977 Beehive 9:40 ie 3/6/1977 Lion 13:00 3/6/1977 Lion 15:07 3/7/1977 Old Faithful 8:54 2:01 8:50 3/7/1977 Old Faithful 9:44 0:50 4:55 9:42 9:44 3/7/1977 Old Faithful 10:59 1:15 2:35 10:59 11:01 3/7/1977 Old Faithful 11:45 0:46 ~4:40 11:54 3/7/1977 Old Faithful 13:01 1:16 2:06 13:01 3/7/1977 Old Faithful 13:59 0:58 4:34 13:47 13:51 3/7/1977 Old Faithful 15:20 1:21 4:10 15:15 3/7/1977 Old Faithful 16:24 1:04 3:40 16:32 3/7/1977 Old Faithful 17:38 1:14 1:55 17:35 17:28 3/7/1977 Old Faithful 18:34 0:56 4:03 18:28 3/7/1977 Old Faithful 19:58 1:24 Long 3/7/1977 Beehive's Indicator 16:15 boardwalk soaked 16:35 3/7/1977 Castle 8:10 ie Windy 30-4-mph gusts 3/7/1977 Castle 17:44 ie 3/7/1977 Grand 9:01 1B 3/7/1977 Grand 17:35 ie 3b 3/8/1977 Old Faithful 8:51 4:25 8:50 3/8/1977 Old Faithful 10:05 1:14 ~2:45 3/8/1977 Old Faithful 11:19 1:14 4:23 11:00 3/8/1977 Old Faithful 12:37 1:18 4:00 12:34 12:33 3/8/1977 Old Faithful 13:44 1:07 3:39 13:47 3/8/1977 Old Faithful 14:54 1:10 4:03 14:44 14:53 3/8/1977 Old Faithful 16:08 1:14 2:21 16:03 16:04 3/8/1977 Old Faithful 17:13 1:05 4:13 17:01 3/8/1977 Old Faithful 18:32 1:19 3:47 18:23 18:26 3/8/1977 "wind gusts to 47,heavy snow" 3/9/1977 Old Faithful 8:46 4:01 8:32 3/9/1977 Old Faithful 9:52 1:06 short 3/9/1977 Old Faithful 10:59 1:07 3:49 10:59 10:50 3/9/1977 Old Faithful 12:10 1:11 3:55 11:59 12:07 3/9/1977 Old Faithful 13:16 1:06 4:15 ? 13:20 3/9/1977 Old Faithful 14:26 1:10 4:00 14:20 14:29 3/9/1977 Old Faithful 15:41 1:15 4:09 15:37 15:36 3/9/1977 Old Faithful 16:47 1:06 3:56 16:46 16:53 3/9/1977 Old Faithful 17:55 1:08 17:56 3/9/1977 Dome active "Heavy snow all day~8""(most for whole winter)" 3/10/1977 Old Faithful 8:49 4:11 8:43 3/10/1977 Old Faithful 10:08 1:19 3:59 10:03 10:02 3/10/1977 Old Faithful 11:32 1:24 4:30 11:19 11:21 3/10/1977 Old Faithful 12:49 1:17 3:38 12:47 12:47 3/10/1977 Old Faithful 14:10 1:21 2:06 13:51 13:56 3/10/1977 Old Faithful 15:02 0:52 3:55 14:54 15:00 3/10/1977 Old Faithful 16:15 1:13 4:20 16:10 16:02 3/10/1977 Old Faithful 17:32 1:17 3:54 17:26 17:27 3/10/1977 Old Faithful 18:39 1:07 ~4 18:41 3/10/1977 Old Faithful 20:02 1:23 Long 19:45 3/10/1977 Beehive 13:26 3/10/1977 Castle 14:10 ie 3/10/1977 Dome active 3/11/1977 Old Faithful 9:03 4:23 none 3/11/1977 Old Faithful 10:31 1:28 4:03 10:27 10:18 3/11/1977 Old Faithful 11:38 1:07 3:52 11:32 11:43 3/11/1977 Old Faithful 12:55 1:17 3:48 12:47 12:52 3/11/1977 Old Faithful 14:11 1:16 3:44 14:00 14:05 3/11/1977 Old Faithful 15:19 1:08 2:11 15:15 15:21 3/11/1977 Old Faithful 16:13 0:54 4:21 16:12 16:12 3/11/1977 Grand 9:00 ie 3/12/1977 Old Faithful 9:01 short 3/12/1977 Old Faithful 10:02 1:01 4:19 10:02 9:51 3/12/1977 Old Faithful 11:14 1:12 3:27 11:14 3/12/1977 Old Faithful 12:25 1:11 4:06 12:18 12:24 3/12/1977 Old Faithful 13:40 1:15 2;04 13:33 13:37 3/12/1977 Old Faithful 14:39 0:59 4:39 14:25 14:30 3/12/1977 Old Faithful 16:00 1:21 4:06 15:51 15:55 3/12/1977 Old Faithful 17:08 1:08 4:11 17:08 13:12 3/12/1977 Beehive 12:49 3/12/1977 Beehive's Indicator 12:37 3/12/1977 Little Cub 10:59 ie 3/13/1977 Old Faithful 9:06 3:32 3/13/1977 Old Faithful 10:14 1:08 4:03 10:11 10:16 3/13/1977 Old Faithful 11:27 1:13 Long 11:24 3/13/1977 Old Faithful 12:36 1:09 4:05 12:38 3/13/1977 Old Faithful 13:57 1:21 3:25 13:50 13:48 3/13/1977 Old Faithful 15:07 1:10 4:25 15:07 3/13/1977 Old Faithful 16:40 1:33 3:59 16:19 16:12 3/13/1977 Old Faithful 17:50 1:10 4:06 17:43 17:50 3/13/1977 Old Faithful 19:04 1:14 3:47 18:56 3/13/1977 Old Faithful 20:11 1:07 4:46 3/13/1977 Beehive 16:36 "D=5m14,steam 2m46;4m20s before OF" 3/13/1977 Beehive's Indicator 16:24 3/13/1977 Castle 9:00 ie 3/13/1977 Castle 18:45 ie 3/14/1977 Old Faithful 8:45 2:08 08:45(<1m) 3/14/1977 Old Faithful 9:35 0:50 ~Long 9:37 3/14/1977 Old Faithful 10:51 1:16 3:33 10:48 10:45 3/14/1977 Old Faithful 11:54 1:03 3:44 ? 11:56 3/14/1977 Old Faithful 13:11 1:17 1:56 13:02 13:04 3/14/1977 Old Faithful 13:53 0:42 4:43 none 14:02 3/14/1977 Old Faithful 15:10 1:17 1:55 15:07 15:09 3/14/1977 Old Faithful 16:02 0:52 4:37 15:53(41s) 16:00 3/14/1977 Old Faithful 17:17 1:15 3:47 17:11 17:17 3/14/1977 Old Faithful 18:28 1:11 4:19 18:27 3/14/1977 Beehive 15:34 "D=4m43,steam3m10" 3/14/1977 Beehive's Indicator 15:23 ie 3/14/1977 Castle 12:53 ie 3/14/1977 Grand 16:13 ie 3/15/1977 Old Faithful 9:12 2:17 8:57 3/15/1977 Old Faithful 10:09 0:57 4:17 9:54 3/15/1977 Old Faithful 11:29 1:20 3:53 11:17 3/15/1977 Old Faithful 12:32 ie 1:03 Long 3/15/1977 Old Faithful 13:48 1:16 3:56 13:37 3/15/1977 Old Faithful 14:59 1:11 2:16 3/15/1977 Old Faithful 15:51 0:52 4:42 15:42 3/15/1977 Old Faithful 17:19 1:28 3:52 3/15/1977 Beehive 9:40 D=4m33 3/15/1977 Beehive's Indicator 9:27 ie 3/15/1977 Castle 15:55 ie 3/15/1977 Grand 16:52 ie 3/16/1977 Old Faithful 8:48 1:54 8:42 3/16/1977 Old Faithful 9:45 0:57 4:52 9:24 3/16/1977 Old Faithful 10:59 1:14 3:39 3/16/1977 Old Faithful 12:06 1:07 4:25 11:59 3/16/1977 Old Faithful 13:19 1:13 3:05 13:16 3/16/1977 Old Faithful 14:17 0:58 4:32 none 3/16/1977 Old Faithful 15:29 1:12 4:11 none 3/16/1977 Old Faithful 16:53 1:24 3:55 16:33 3/16/1977 Old Faithful 17:58 1:05 2:03 3/16/1977 Old Faithful 18:42 0:44 4:33 3/16/1977 Old Faithful 20:02 1:20 4:08 3/16/1977 Beehive 15:34 "D=5m07,steam2m24" 3/16/1977 Beehive's Indicator 15:28 3/16/1977 Dome 13:09 start of eruption 3/16/1977 Grand 15:58 ie 3/16/1977 Lion 10:22 3/16/1977 Lion 14:11 3/16/1977 Lion 15:27 3/16/1977 Lion 17:40 3/16/1977 North Goggles 14:04 ie 3/17/1977 Old Faithful 8:47 1:49 8:33 3/17/1977 Old Faithful 9:30 0:43 4:19 none 3/17/1977 Old Faithful 10:45 1:15 4:04 10:41 3/17/1977 Old Faithful 12:03 1:18 4:12 11:52 3/17/1977 Old Faithful 13:10 1:07 4:04 13:08 3/17/1977 Old Faithful 14:31 1:21 3:40 14:12 3/17/1977 Old Faithful 15:42 1:11 2:03 15:28 3/17/1977 Old Faithful 16:36 0:54 4:31 16:25 3/17/1977 Castle 13:48 ie 3/17/1977 Daisy & Splendid 14:29 3/17/1977 Grand 15:20 ie 3/20/1977 Castle 9:10 ie 3/20/1977 Oblong 10:23 ie 3/20/1977 Riverside 10:15 ie 3/22/1977 Beehive 10:47 "D=4m51,steam=2m59" 3/22/1977 Beehive's Indicator 10:41 ie 3/22/1977 Depression 11:09 3/22/1977 Grand 15:07 ie 3/22/1977 Plume 10:47 simultaneous w/Beehive 3/22/1977 Plume 11:15 3/22/1977 Plume 11:41 3/22/1977 Plume 12:09 3/22/1977 Plume 12:35 3/23/1977 Castle 10:50 ie 3/23/1977 Castle 19:56 Int~9h06m 3/25/1977 Grand 15:57 ie 3b 3/25/1977 Lion 16:08 3/27/1977 Giantess 19:00 ie in late steam phase;Interval=37+days;heavy snow drifting 3/28/1977 Old Faithful 11:29 ~4 3/28/1977 Beehive 11:32 "concerted,began 3m01s into OF eruption;D=5m05,steam3m12" 3/28/1977 Beehive's Indicator 11:18 ie 3/30/1977 Lion 19:58 4/6/1977 Beehive 16:42 High=56F 4/7/1977 Old Faithful 9:06 3:53 start 1m34 into steamphase of Beehive 4/7/1977 Beehive 8:59 "D=4m46,steam3m50, Int=16h18" 4/7/1977 Beehive's Indicator 8:52:00 ie D>or = to8m 4/8/1977 Great Fountain 9:51:00 "P unknown;followed by 4m minor surging,est120ft" 4/8/1977 Great Fountain 19:39 "5m pause,followed by 1m minor surging,est 150' ,67m ovfl" 4/14/1977 Castle 12:53 4/14/1977 Daisy 13:36 (Splendid has also been active) 4/14/1977 Grand 13:41 4b 4/14/1977 Riverside 13:51 ie 4/14/1977 Splendid 16:18 4/15/1977 Old Faithful 7:54 ~3 3/4 4/15/1977 Old Faithful 9:09 1:15 3:33 9:04 4/15/1977 Old Faithful 10:24 1:15 ~2 10:19 4/15/1977 Old Faithful 11:12 0:48 3:38 11:14 4/15/1977 Old Faithful 12:32 1:20 2:15 12:22 4/15/1977 Old Faithful 13:20 0:48 4:21 13:22 4/15/1977 Old Faithful 14:52 1:32 3:28 160'or more 14:34 4/15/1977 Old Faithful 16:03 1:11 1:49 16:02 4/15/1977 Old Faithful 16:46 0:43 16:50 4/15/1977 Beehive's 12not typo 4/15/1977 Beehive's Indicator 11:12 ie 4/15/1977 Beehive's Indicator 14:26 D=35mfalse alarm 4/15/1977 Castle 7:49 ie steam phase 4/15/1977 Depression 8:04 4/15/1977 Depression 13:04 4/15/1977 Grand 13:35 4/15/1977 Great Fountain ~10:30 VR pre eruption boiling surges 4/15/1977 Great Fountain 18:45 ie (via 315) 4/16/1977 Old Faithful 8:59 3:35 4/16/1977 Old Faithful 10:14 1:15 4:01 10:09 4/16/1977 Old Faithful 11:30 1:16 3:30 11:26 4/16/1977 Old Faithful 12:51 1:21 3:28 12:40 4/16/1977 Old Faithful 14:08 1:17 3:40 14:01 4/16/1977 Old Faithful 15:14 1:06 4:16 15:18 4/16/1977 Old Faithful 16:37 1:23 4:09 16:27 4/16/1977 Old Faithful 17:51 1:14 4:01 17:50 4/16/1977 Old Faithful 19:07 1:16 3:54 1900 (19s) 19:00 4/16/1977 Beehive's Indicator 14:45 ie (D>or = 25m) 4/16/1977 Beehive's Indicator 17:51 ie 4/16/1977 Castle 14:11 ie (331)? 4/16/1977 Grand 14:16 ie (335)? 4/16/1977 Great Fountain 15:20 ie late ie(315) 4/16/1977 Little Squirt 14:40 ie 4/16/1977 Narcissus 10:43 ie 4/16/1977 Pink Cone 10:51 start 4/16/1977 Riverside 15:55 4/17/1977 Old Faithful 06:51end 4/17/1977 Old Faithful 8:08 ~3 4/17/1977 Old Faithful 9:18 1:10 3:22 9:18 4/17/1977 Old Faithful 10:33 1:15 3:42 10:28 4/17/1977 Old Faithful 11:40 1:07 4:09 11:43 4/17/1977 Old Faithful 12:49 1:09 3:46 12:53 4/17/1977 Old Faithful 14:08 1:19 3:35 13:59 4/17/1977 Old Faithful 15:23 1:15 1:57 15:18 4/17/1977 Old Faithful 16:16 0:53 ~3 16:13 4/17/1977 Beehives Indicator 11:26 ie end~11:35 4/17/1977 Beehives Indicator 11:41 end 11:59 4/17/1977 Beehives Indicator 14:58 to 15:26 D~28m 4/17/1977 Depression 10:48 ie 4/17/1977 Depression 16:25 4/17/1977 Grand 13:41 ie 4/18/1977 Old Faithful 8:19 3:42 8:08 4/18/1977 Old Faithful 9:35 1:16 4:18 ~09:22 9:29 4/18/1977 Old Faithful 10:49 1:14 3:46 10:43 10:48 4/18/1977 Old Faithful 12:06 1:17 3:21 11:57 11:59 4/18/1977 Old Faithful 13:16 1:10 4:20 13:07 ~120' 13:14 4/18/1977 Old Faithful 14:35 1:19 4:03 14:13 ~150' 14:29 4/18/1977 Old Faithful 15:50 1:15 3:23 15:40 165' 15:47 4/18/1977 Old Faithful 17:05 1:15 4:11 16:47 17:00 4/18/1977 Old Faithful 18:17 1:12 4:24 18:09 4/18/1977 Old Faithful 19:30 1:13 3:56 4/18/1977 Old Faithful 20:40 1:10 4:11 4/18/1977 Old Faithful 21:50 1:10 2:06 4/18/1977 Aurora borealis 21:30 "to 2200+,moderate to weak" 4/18/1977 Beehive's Indicator 9:39 to 10:03 4/18/1977 Beehive's Indicator 10:07 to 10:28 4/18/1977 Beehive's Indicator 12:27 ie D>or=21m 4/18/1977 Beehive's Indicator 17:19 ie D>or =16min 4/18/1977 Castle 7:23 ie water 4/18/1977 Castle 16:09 ie "high 45F,low 21" 4/18/1977 Depression 12:36 4/18/1977 Fountain 18:45 ie 4/18/1977 Grand 10:56 ie probably 4/18/1977 Grand 19:19 ie 4/18/1977 Lion 10:46 v. nervous 4/18/1977 Lion 12:09 4/18/1977 Lion 14:18 4/18/1977 Lion 15:55 4/18/1977 Lion 17:33 D=3m09 4/18/1977 Plume 16:13 4/18/1977 Plume 16:41 4/18/1977 Plume 17:08 4/18/1977 Plume 17:34 4/18/1977 Plume 18:00 "(4b,68s)" 4/18/1977 Plume 18:27 "(3b,43s)" 4/19/1977 Old Faithful 8:27 ~3 1/2 53 visitors 4/19/1977 Old Faithful 9:42 1:15 4:00 9:28 hi=39 9:37 4/19/1977 Old Faithful 10:46 1:04 3:37 low=26 10:54 4/19/1977 Old Faithful 12:06 1:20 3:33 11:51 snow 11:56 4/19/1977 Old Faithful 13:21 1:15 3:54 13:15 13:16 4/19/1977 Old Faithful 14:26 1:05 3:47 notbefore 1424 14:34 4/19/1977 Old Faithful 15:38 1:12 3:55 15:29 15:36 4/19/1977 Old Faithful 16:53 1:15 ~3 1/2 16:48 4/19/1977 Beehive's Indicator 8:15 ie to08:37 D>or =22 4/19/1977 Beehive's Indicator 11:24 "to 1158,D=34m" 4/19/1977 Beehive's Indicator 14:15 ie "to 1450,D>or =35" 4/19/1977 Castle 10:34 4/19/1977 Churn 7:42 ie to3' from level-2' 4/19/1977 Daisy a.m. is very enervated 4/19/1977 Depression 9:42 4/19/1977 Giantess 11:00 heavy boiling visible from VC 4/19/1977 Grand 10:44 4/19/1977 Oblong 8:41 4/19/1977 Oblong 18:52 4/19/1977 Round 18:57 4/19/1977 Spectacle 19:02 4/20/1977 Old Faithful 7:21 4/20/1977 Old Faithful 9:41 3:47 9:29 4/20/1977 Old Faithful 10:47 1:06 4:07 10:42 10:51 4/20/1977 Old Faithful 12:07 1:20 2:14 12:04 11:59 4/20/1977 Old Faithful 13:07 1:00 4:44 14:50 12:59 4/20/1977 Old Faithful 14:19 1:12 3:36 none 14:23 4/20/1977 Old Faithful 15:28 1:09 4:09 15:24 15:29 4/20/1977 Old Faithful 16:46 1:18 2:12 16:37 16:41 4/20/1977 Old Faithful 17:41 0:55 4:29 17:26 17:38 4/20/1977 Old Faithful 18:53 1:12 4:13 18:51 18:56 4/20/1977 Old Faithful 20:10 1:17 3:45 20:06 4/20/1977 Old Faithful 21:12 1:02 4:14 21:20 4/20/1977 Castle 13:55 ie high=41F 4/20/1977 Plume 8:42 57visitors 4/20/1977 Plume 9:10 "(3b:10s,10,8,D=46s)" 4/20/1977 Beehive's Indicator 8:42 ie to 09:33 4/20/1977 Beehive's Indicator 11:27 ie 4/20/1977 Beehive's Indicator 14:24 ie 4/20/1977 Beehive's Indicator 16:51 ie 4/20/1977 Beehive's Indicator 18:57 ie 4/20/1977 Plume 9:37 (44s);missed one after 4/20/1977 Plume 10:30 4/20/1977 Plume 10:57 "9,8,8;48s" 4/20/1977 Depression 9:17 4/20/1977 Depression 17:22 4/20/1977 Aurum 10:57 4/20/1977 Spiteful 17:16 4/20/1977 Plume 11:23 "3 1/2b;8.7s.6.7pause,9.6s,11.2s pause,7.6s,20.2s pause,7.0s;D=70s)" 4/20/1977 Plume 12:15 missed one before 4/20/1977 Plume 12:42 3b in 43s;weak 4th ending at 68s 4/20/1977 Plume 13:08 4/20/1977 Plume 13:33 "(4b:8s,9s,8s,8s,D=64s)" 4/20/1977 Plume 14:00 "(3 1/2b:9,9,8,D=63s)" 4/20/1977 Plume 14:25 4/20/1977 Plume 14:49 4/20/1977 Plume 15:15 4/20/1977 Plume 15:41 "(3b:11s,9s,8s,D=46s)" 4/20/1977 Kaleidoscope 10:00 active 4/20/1977 Rift 16:06 ie 4/20/1977 Great Fountain ~13:30 end 4/20/1977 Riverside 16:33 4/20/1977 Artemisia 14:22 4/21/1977 Old Faithful 8:53 4:13 4/21/1977 Old Faithful 10:06 1:13 3:44 10:02 10:06 4/21/1977 Old Faithful 11:12 1:06 4:29 11:11 11:16 4/21/1977 Old Faithful 12:30 1:18 2:14 12:17 12:27 4/21/1977 Old Faithful 13:33 1:03 4:37 13:17 13:22 4/21/1977 Old Faithful 14:51 1:18 1:48 14:41 14:48 4/21/1977 Old Faithful 15:40 0:49 4:55 15:33 15:38 4/21/1977 Old Faithful 16:54 1:14 3:38 16:52 16:56 4/21/1977 Old Faithful 18:08 1:14 4:08 17:55 18:04 4/21/1977 Round 15:54 "high55,low21" 4/21/1977 Spectacle 15:57 4/21/1977 Spectacle 15:59 4/21/1977 Castle 8:25 ie 4/21/1977 Castle 17:45 ie 4/21/1977 Depression 9:07 4/21/1977 Fan & Mortar last night 4/21/1977 Beehive 9:19 4/21/1977 Beehive's Indicator 15:05 4/21/1977 Plume 10:01 4/21/1977 Plume 10:29 4/21/1977 Plume 10:57 4/21/1977 Plume 11:20 4/21/1977 Plume 11:48 "(3 1/2b,73s)" 4/21/1977 Plume 12:15 "(3b,43s)" 4/21/1977 Plume 12:39 "(3 1/2b,70s)" 4/21/1977 Lion 13:23 D=5m39 4/21/1977 Lion 15:19 3m23 4/21/1977 Lion 16:11 4/21/1977 Lion 17:03 4/21/1977 Riverside 10:22 4/21/1977 Riverside 16:03 ie 4/21/1977 Spiteful 16:22 ~3m 4/21/1977 Grand 13:36 2b 4/21/1977 North Chain Lakes Geyser 10:45 20';Refilled in 1h58m 4/21/1977 Artemisia 12:00 4/21/1977 Atomizer 11:23 minor 4/22/1977 Old Faithful 8:11 4:17 4/22/1977 Old Faithful 9:22 1:11 3:28 9:18 9:24 4/22/1977 Old Faithful 10:32 1:10 3:53 10:32 4/22/1977 Old Faithful 11:48 1:16 3:51 11:33 11:43 4/22/1977 Old Faithful 12:55 1:07 2:48 13:00 4/22/1977 Old Faithful 14:00 1:05 4:10 13:44 13:50 4/22/1977 Old Faithful 15:09 1:09 4:09 14:53 15:13 4/22/1977 Old Faithful 16:23 1:14 3:37 16:21 4/22/1977 Fan & Mortar last night after 19:30 4/22/1977 Spiteful 8:21 "hi62,low25" 4/22/1977 Spiteful 8:53 29visitors 4/22/1977 Beehive 14:51 "D=4m26,steam~2:30" 4/22/1977 Beehive's Indicator 9:50 ie to~1000 4/22/1977 Beehive's Indicator 14:42 ie sunny 4/22/1977 Round 10:05:00 I=18h? 4/22/1977 Spectacle 10:09:00 4/22/1977 Riverside 10:10:00 ie 4/22/1977 Grand 12:53:00 4/22/1977 Depression 13:10:00 4/23/1977 Old Faithful 7:13 4/23/1977 Old Faithful ~08:28 ~1:15 ~4:00 08:23-28 4/23/1977 Old Faithful 9:44 ~1:16 2:06 9:36 9:40 4/23/1977 Old Faithful 10:29 0:45 4:03 10:29 10:35 4/23/1977 Old Faithful 11:49 1:20 2:15 11:41 4/23/1977 Old Faithful 12:35 0:46 3:57 12:41 4/23/1977 Old Faithful 13:59 1:24 1:55 13:43 13:47 4/23/1977 Old Faithful 14:51 0:52 4:07 14:49 14:48 4/23/1977 Old Faithful 15:59 1:08 3:01 15:55 16:04 4/23/1977 Old Faithful 17:18 1:19 4:11 17:09 17:04 4/23/1977 Old Faithful 18:36 1:18 2:09 18:31 4/23/1977 Spiteful 7:15 D=5m10s 4/23/1977 Beehive's Indicator 9:09 ie "hi=67,low25" 4/23/1977 Beehive's Indicator 13:49 ie 208visitors 4/23/1977 Beehive's Indicator 16:13 to1626(D=13m) 4/23/1977 Depression 9:55 first seagull 4/23/1977 Depression 15:20 I=5h25m 4/23/1977 Grand 13:41:00 "3b;Rift ie before,during, and after Grand" 4/23/1977 Castle 15:09 4/23/1977 Riverside 15:45 4/24/1977 Old Faithful 8:38 ie 4/24/1977 Old Faithful 9:51:00 1:13 2:46 9:45 4/24/1977 Old Faithful 10:55 1:04 4:12 10:51 10:46 4/24/1977 Old Faithful 12:10:00 1:15 3:55 12:00 12:07 4/24/1977 Old Faithful 13:14 1:04 3:44 none? 13:20 4/24/1977 Old Faithful 14:41 1:27 3:45 14:22 14:24 4/24/1977 Old Faithful 15:59:00 1:18 ~4 15:46 15:51 4/24/1977 Old Faithful 17:09 1:10 2:21 17:03 17:11 4/24/1977 Old Faithful 18:03 0:54 4:19 17:57 18:01 4/24/1977 Old Faithful 19:22 1:19 1:53 19:13 19:16 4/24/1977 Old Faithful 20:15 0:53 4:35 20:13 20:12 4/24/1977 Old Faithful 21:39 1:24 4:10 21:30 4/24/1977 Old Faithful 22:43 1:04 22:52 4/24/1977 Beehive's Indicator 8:55 ie "hi=63,low27" 4/24/1977 Beehive's Indicator 11:40 ie 4/24/1977 Beehive's Indicator 14:22 ie "D>40,still going 1503" 4/24/1977 Beehive's Indicator 16:57:00 ie 4/24/1977 Riverside 10:38:00 4/24/1977 Riverside 22:33 4/24/1977 Depression 12:39:00 4/24/1977 Depression 17:42 4/24/1977 Depression 22:39 4/24/1977 Aurum 12:55 4/24/1977 Aurum 14:29 1h34m 4/24/1977 Aurum 17:06 2h27 4/24/1977 Lion 13:02 D~7m 4/24/1977 Lion 13:48 roared 4/24/1977 Lion 14:21 4/24/1977 Lion 16:54 4/24/1977 Castle 13:46 4/24/1977 Grand 15:41:00 4/24/1977 Spa 22:27:00 "Bursts~30',1-4'in between " 4/24/1977 Spa 22:33 "~30',1-4'between2227&2233,end not seen" 4/24/1977 Round 16:11 "I>18h,full at0700,boiling by 0900" 4/25/1977 Old Faithful 8:13 short~2 1/2 8:08 4/25/1977 Old Faithful 8:57 0:44 4:20 8:56 9:05 4/25/1977 Old Faithful 10:23 1:26 2:13 10:10 10:10 4/25/1977 Old Faithful 11:16 0:53 4:29 11:11 11:15 4/25/1977 Old Faithful 12:38 1:22 3:17 12:26 12:31 4/25/1977 Old Faithful 13:43 1:05 3:43 13:38 13:48 4/25/1977 Old Faithful 15:00 1:17 2:34 14:44 14:53 4/25/1977 Old Faithful 15:51 0:51 4:37 15:41 15:52 4/25/1977 Old Faithful not seen 17:06 4/25/1977 Old Faithful 17:59 long 4/25/1977 Round between 0750 &0835;~0810 by steamphase(I~16h) 4/25/1977 Grand 8:11 ie "high68,low23" 4/25/1977 Grand 15:56 96 visitors today 4/25/1977 Beehive 23:57 ie 4/25/1977 Beehive's Indicator 8:42 to 09:20 4/25/1977 Beehive's Indicator 11:02 ie to 11:16 4/25/1977 Beehive's Indicator 18:17 ie 4/25/1977 Depression 8:59 4/25/1977 Depression 13:51 4/25/1977 Oblong 9:06 4/25/1977 Uncertain 9:15 in steam phase 4/25/1977 North Goggles 9:09 minor 4/25/1977 Riverside 9:51 4/25/1977 Castle 15:55 ie 4/25/1977 Dome 15:35 "spectacular-probably 30',D~3min" 4/25/1977 Dome 15:50:00 4/25/1977 Little Squirt 14:30 ie 4/25/1977 Fountain 12:00 ieVR 4/26/1977 Old Faithful 7:58 4/26/1977 Old Faithful 9:04 1:06 ~4:00 ~09:08 4/26/1977 Old Faithful 10:18 1:14 3:56 ~10:16 4/26/1977 Old Faithful 11:29 1:11 3:57 11:22 11:30 4/26/1977 Old Faithful 12:45 1:16 4:08 12:38 12:41 4/26/1977 Old Faithful 13:57 1:12 3:53 13:51 13:58 4/26/1977 Old Faithful 15:07 1:10 ~3:40 15:00 15:08 4/26/1977 Old Faithful 16:18 1:11 2:05 16:16 16:17 4/26/1977 Old Faithful 17:08 0:50 4:37 17:03 17:08 4/26/1977 Beehive's Indicator 8:03 "hi61,low28" 4/26/1977 Round ~09:30 98 visitors 4/26/1977 Grand 8:26 ie 4/26/1977 Grand 16:01 4/26/1977 Great Fountain 8:50 ie started~08:10 4/26/1977 White Dome 8:57 4/26/1977 White Dome 9:18 4/26/1977 Dome active all day 4/26/1977 Castle ~10:45 4/26/1977 Castle 19:39 4/26/1977 Pink Cone 11:44 4/26/1977 Fountain 14:51 ie 4/26/1977 Riverside 13:55 (maint. rpt.) 4/26/1977 Riverside 20:04:00 4/26/1977 Aurum 16:41 4/27/1977 Old Faithful 9:23 ~4:00 4/27/1977 Old Faithful 10:43 1:20 3:35 10:38 10:35 4/27/1977 Old Faithful 12:07 1:24 4:01 11:53 11:53 4/27/1977 Old Faithful 13:14 1:07 3:58 13:12 13:19 4/27/1977 Old Faithful 14:22 1:08 3:58 14:21 14:26 4/27/1977 Old Faithful 15:41 1:19 3:48 15:38 15:34 4/27/1977 Beehive ~14:50 by 315 reported on 4/29 4/27/1977 Beehive's Indicator 9:30 159 visitors 4/27/1977 Castle 14:05 ie 3otters river below Castle ~2:20 4/27/1977 Rift 2:27:00 active 4/27/1977 Atomizer 15:14 minor 4/27/1977 Artemisia just full at 1500 (erupted ~1100?) 4/28/1977 Old Faithful ~09:32 4/28/1977 Old Faithful 10:45:00 1:13 3:56 10:33 ~10:42 4/28/1977 Old Faithful 12:00 1:15:00 3:45 11:57 4/28/1977 Old Faithful 13:14 1:14:00 4:07 13:06 13:10 4/28/1977 Old Faithful 14:20 1:06:00 3:30 14:27 4/28/1977 Old Faithful 15:29:00 1:09:00 3:42 15:27 15:30 4/28/1977 Old Faithful 16:40:00 1:11:00 16:39 4/28/1977 Beehive 16:35 155 visitors 4/28/1977 Grand 10:07 4/28/1977 Lion 16:35 4/28/1977 Pink Cone 8:50 4/29/1977 Old Faithful 9:03 4/29/1977 Old Faithful 10:18:00 1:15 ~2 1/2 4/29/1977 Old Faithful 11:08:00 0:50 3:41 11:05 11:10 4/29/1977 Old Faithful 12:33:00 1:25 3:33 12:22 12:18 4/29/1977 Old Faithful 13:39:00 1:06 ~4:15 13:38 13:43 4/29/1977 Old Faithful 14:49 1:10 3:50 none? 14:52 4/29/1977 Old Faithful 16:07 1:18 3:38 15:59 15:59 4/29/1977 Old Faithful 17:14 1:07 3:50 17:04 17:17 4/29/1977 Old Faithful 18:23 1:09 4:10 18:19 18:24 4/29/1977 Old Faithful 19:33 1:10 2:14 19:27 4/29/1977 Beehive's Indicator 8:21 ie "to 08:47,D>" 4/29/1977 Beehive's Indicator 14:30:00 ie 4/29/1977 Beehive's Indicator 15:52 4/29/1977 Beehive's Indicator 18:43:00 ie 4/29/1977 Grand 9:15 3b 4/29/1977 Grand 16:32 2b 4/29/1977 Artemisia ~08:30 (via 315) 4/29/1977 Depression 11:20 4/29/1977 Depression 16:28 4/29/1977 Castle ~15:30 4/29/1977 Riverside 16:30 4/29/1977 Oblong 16:49 4/30/1977 Old Faithful 8:49:00 4:21 8:31 4/30/1977 Old Faithful 10:04 1:15:00 1:44 10:02 4/30/1977 Old Faithful 10:58 0:54:00 3:53 10:46 10:51 4/30/1977 Old Faithful 12:12 1:14:00 3:55 12:10 12:09 4/30/1977 Old Faithful 13:23 1:11:00 3:54 13:21 13:24 4/30/1977 Old Faithful 14:36 1:13:00 4:17 14:28 14:34 4/30/1977 Old Faithful 15:54 1:18:00 3:29 15:44 15:49 4/30/1977 Old Faithful 17:00 1:06:00 4:03 17:04 4/30/1977 Old Faithful 18:15 1:15:00 18:12 4/30/1977 Old Faithful 19:35 1:20:00 4:06 19:23 4/30/1977 Old Faithful 20:48 1:13:00 3:54 20:38 20:47 4/30/1977 Old Faithful 22:05 1:17:00 22:00 4/30/1977 Old Faithful 23:11 1:06:00 4:11 23:07 4/30/1977 West Flood 7:53 ie 399visitors 4/30/1977 Fountain 10:35 ie 4/30/1977 Pink 8:03 ie steam phase 4/30/1977 Till 8:26 4/30/1977 Great Fountain 13:14 "6m pause,super blue burst~2',wind~20mph" 4/30/1977 Grand 10:08 4/30/1977 Grand 17:03:00 ie 4/30/1977 Riverside 10:16 ie 4/30/1977 Riverside 15:41:00 14:38 overflow 4/30/1977 Beehive's Indicator 10:20 ie 4/30/1977 Castle 12:34 ie (water) 4/30/1977 Castle 21:55 ie 4/30/1977 Artemisia 14:13 ie 4/30/1977 Little Squirt active all day 5/1/1977 Old Faithful 7:43 ~ave. 5/1/1977 Old Faithful 9:04 1:21:00 ~3:40 ~08:40 ~08:53 5/1/1977 Old Faithful 10:09 1:05:00 4:04 10:01 10:14 5/1/1977 Old Faithful 11:24:00 1:15:00 4:15 11:22 11:21 5/1/1977 Old Faithful 12:39 1:15:00 3:30 12:29 12:34 5/1/1977 Old Faithful 13:49 1:10:00 3:36 13:49 5/1/1977 Old Faithful 15:08 1:19:00 4:08 14:57 14:59 5/1/1977 Old Faithful 16:14 1:06:00 4:15 16:13 16:20 5/1/1977 Old Faithful 17:27 1:13:00 4:50 17:27 5/1/1977 Old Faithful 19:51 5/1/1977 Beehive's Indicator 7:50 ie to 08:06 5/1/1977 Beehive's Indicator 10:03 5/1/1977 Grand before08:30 5/1/1977 Grand 18:56 ie I>or =10 1/2h 5/1/1977 Lion 16:00 5/1/1977 Lion 19:07 5/1/1977 Castle ~16:30 5/1/1977 Riverside 19:40 ie 5/1/1977 Artemisia 19:40 ie 5/1/1977 Fountain 15:55 ie (311Carnes) 5/2/1977 Old Faithful 7:52 ? 5/2/1977 Old Faithful 9:02 1:10 4:30:00 9:02 5/2/1977 Old Faithful 10:15 1:13 4:08 10:15 10:17 5/2/1977 Old Faithful 11:30 1:15 3:45 11:20 11:28 5/2/1977 Old Faithful 12:39 1:09 4:28 12:35 12:40 5/2/1977 Old Faithful 13:56:00 1:17 4:15 13:47 13:54 5/2/1977 Old Faithful 15:06 1:10 3:47 15:06 15:09 5/2/1977 Old Faithful 16:13 1:07 4:15 16:12 16:16 5/2/1977 Old Faithful 17:29 1:16 3:56 17:18 17:26 5/2/1977 Old Faithful 18:33 1:04 4:14 none 18:41 5/2/1977 Old Faithful 19:44 1:11 3:57 19:40 19:46 5/2/1977 Old Faithful 20:49 1:05 3:50 20:42 20:54 5/2/1977 Vent 10:46:05 5/2/1977 Grand 10:43:00 1st10:43:13-52:28;2nd53:11-53:57huge;3rd54:52-55:44huger;4th56:21-56:41lousy 5/2/1977 Grand 18:17:00 "4b:P1=18s,B2=43;P2=37,B3=38s;P3=13,B4=35s" 5/2/1977 Castle 10:48 5/2/1977 Castle 19:53 5/2/1977 Great Fountain 11:28 5/2/1977 Great Fountain 19:55 5/2/1977 Churn 10:59 "to 1102, 3',heavy overflow" 5/2/1977 Lion 12:22 5/2/1977 Lion 14:51 5/2/1977 Lion 17:31 5/2/1977 Lion 19:35 5/2/1977 Depression 12:37 5/2/1977 Depression 19:44 5/2/1977 Fan & Mortar 20:12 ie 5/2/1977 Beehive's Indicator 12:45 ie 5/2/1977 Beehive's Indicator 19:50 ie 5/2/1977 Riverside 20:05 70min overflow 5/3/1977 Old Faithful 7:41:00 3:56 7:24 5/3/1977 Old Faithful 8:51:00 1:10 3:28 8:48 8:53 5/3/1977 Old Faithful 10:07 1:16 4:15 10:07 10:01 5/3/1977 Old Faithful 11:26 1:19 4:21 11:14 11:20 5/3/1977 Old Faithful 12:48 1:22 4:11 12:32 12:39 5/3/1977 Old Faithful 13:57 1:09 3:49 13:51 14:01 5/3/1977 Old Faithful 15:17 1:20 4:05 15:05 15:07 5/3/1977 Old Faithful 16:35 1:18 4:38 16:22 16:29 5/3/1977 Old Faithful 17:46 1:11 17:50 5/3/1977 Riverside 8:24 5/3/1977 Beehive 11:18:00 5/3/1977 Beehive's Indicator 8:41 ie (D=31) 5/3/1977 Beehive's Indicator 16:31 ie 5/3/1977 Dome active a.m.&p.m. 5/3/1977 Lion 8:57 puffed 5/3/1977 Castle 13:52 5/3/1977 Grand 14:14 5/4/1977 Old Faithful 7:35 5/4/1977 Old Faithful 10:04 4:30 10:04 5/4/1977 Old Faithful 11:20 1:16 ~4:15 11:19 5/4/1977 Old Faithful 12:34 1:14 4:04 12:29 12:33 5/4/1977 Old Faithful 13:50 1:16 3:34 13:46 5/4/1977 Old Faithful 14:53 1:03 4:30 15:00 5/4/1977 Old Faithful 16:17 1:24 4:08 16:08 5/4/1977 Old Faithful 17:30:00 1:13 4:19 17:24 17:30 5/4/1977 Old Faithful 18:37 1:07 3:54 18:35 18:43 5/4/1977 Old Faithful 19:55 1:18 4:34 19:42 19:49 5/4/1977 Old Faithful 21:14 1:19 Long est>160' 21:10 5/4/1977 Beehive 11:16 (I=23h58m) 5/4/1977 Beehive 20:50 5/4/1977 Beehive's Indicator 17:24 ie 5/4/1977 Grand 13:35 5/4/1977 Riverside 13:45:00 5/4/1977 Great Fountain 16:11 5/4/1977 Round 16:13 5/4/1977 Dome active all day 5/4/1977 Castle 18:17 ie steam 5/5/1977 Old Faithful 8:34 4:02 8:27 5/5/1977 Old Faithful 9:49 1:15 4:15 9:39 9:44 5/5/1977 Old Faithful 11:05 1:16 4:26 10:54 11:02 5/5/1977 Old Faithful 12:16 1:11 4:03 12:15 12:20 5/5/1977 Old Faithful 13:29 1:13 4:00 13:21 13:28 5/5/1977 Old Faithful 14:47 1:18 4:03 14:31 14:40 5/5/1977 Old Faithful 15:58 1:11 4:05 15:53 17:10 5/5/1977 Old Faithful 17:04 1:06 ~4:00 18:16 5/5/1977 Old Faithful 18:10 1:06 4:14 18:10 5/5/1977 Old Faithful 19:30 1:20 4:04 19:20 19:23 5/5/1977 Old Faithful 20:45 1:15 2:15 20:39 20:42 5/5/1977 Beehive 12:22 5/5/1977 Beehive's Indicator 8:15 ie 5/5/1977 Beehive's Indicator 12:01 ie 5/5/1977 Beehive's Indicator 18:30 ie 5/5/1977 Fountain 16:45 5/5/1977 Oblong 18:11 5/5/1977 Spiteful 19:07 "w/Mortar to 40',start of active phase" 5/5/1977 Depression 8:09 5/5/1977 Depression 15:09 ie 5/5/1977 Uncertain 13:10 ie 5/5/1977 Fan & Mortar ~10:00 ieVR 5/5/1977 Castle 12:16 ie 5/5/1977 Castle 21:15 5/5/1977 Spa 13:42 (major) 5/5/1977 Spa 19:19 (major>50') 5/5/1977 Grand ~12:30est 5/5/1977 Grand 19:39 (2b) 5/5/1977 Riverside 13:44 5/5/1977 Riverside 19:23 5/6/1977 Old Faithful 8:20 ~3 1/2 5/6/1977 Old Faithful 9:37:00 1:17 2:28 9:27 9:30 5/6/1977 Old Faithful 10:38 1:01 4:40 10:32 10:30 5/6/1977 Old Faithful 11:57 1:19 3:48 11:48 11:54 5/6/1977 Old Faithful 12:00 0:03 12:00 5/6/1977 Old Faithful 13:04 1:04 ~3:20 13:04 13:07 5/6/1977 Old Faithful 14:16 1:12 4:23 14:15 14:14 5/6/1977 Old Faithful 15:29 1:13 ~3:00 15:32 5/6/1977 Old Faithful 16:21 0:52 3:53 16:29 5/6/1977 Old Faithful 17:35 1:14 1:53 17:35 17:32 5/6/1977 Old Faithful 18:25 0:50 Long 18:25 5/6/1977 Old Faithful 19:36 1:11 1:57 19:34 19:40 5/6/1977 Castle 15:20 ie 5/6/1977 Beehive's Indicator 9:23 ie to~10:20(D>57m) 5/6/1977 Grand 11:19 5/6/1977 Grand 18:58 5/6/1977 Depression 12:10 5/6/1977 Riverside 13:11 ie 5/6/1977 Riverside 19:32 5/6/1977 Great Fountain 17:51 5/7/1977 Old Faithful 7:17 2:45 5/7/1977 Old Faithful 8:08 0:51 Long 8:07 5/7/1977 Old Faithful 9:34 1:26 3:50 9:20 5/7/1977 Old Faithful 10:44 1:10 4:05 10:39 10:46 5/7/1977 Old Faithful 12:05 1:21 4:26 11:51 11:56 5/7/1977 Old Faithful 13:30 1:25 2:10 13:17 13:20 5/7/1977 Old Faithful 14:19 0:49 4:21 14:18 14:22 5/7/1977 Old Faithful 15:42 1:23 1:51 15:37 15:32 5/7/1977 Old Faithful 16:21 0:39 ~4:22? none 16:29 5/7/1977 Old Faithful 17:51 1:30 ~2 17:37 17:34 5/7/1977 Old Faithful 18:43 0:52 4:32 18:32 18:41 5/7/1977 Old Faithful 19:58 1:15 3:51 19:54 19:58 5/7/1977 Old Faithful 21:13 1:15 <3:54 21:01 21:08 5/7/1977 Old Faithful 22:18 1:05 3:43 none 22:23 5/7/1977 Old Faithful 23:37 1:19 4:22 23:26 23:28 5/7/1977 Old Faithful 0:41 1:04 0:50 5/7/1977 Depression 9:05 ie 5/7/1977 Little Squirt 17:15 ie 5/7/1977 Castle 9:15 5/7/1977 Castle 18:21 ie 5/7/1977 Beehive's Indicator 9:50 ie 5/7/1977 Beehive's Indicator 13:30 ie 5/7/1977 Beehive's Indicator 15:56 ie to16:10(D>14m) 5/7/1977 Beehive's Indicator 20:23 ie 5/7/1977 Old Tardy 9:40 ie 5/7/1977 Grand 12:20 ie 5/7/1977 Beehive 24:22not typo 5/7/1977 Lion 12:22 5/7/1977 Lion 15:33 5/7/1977 Lion 17:36 5/7/1977 Lion 19:34 5/7/1977 Riverside 13:13 5/7/1977 Riverside 18:40 ie 5/7/1977 Aurum 13:31 5/7/1977 Link 13:14 "minor,2-3ft" 5/7/1977 Rocket 13:13 (7min) 5/7/1977 Giantess 23:31 "initial burst 50'or less,D=28m;pause 12m" 5/7/1977 Giantess 00:11not typo 2nd burst(200') 5/7/1977 Giantess 00:15not typo steamphase(4m44s later) 5/8/1977 Old Faithful 7:31 2:50 5/8/1977 Old Faithful 8:19 0:48 4:48 8:22 5/8/1977 Old Faithful 9:34 1:15 3:16 9:35 5/8/1977 Old Faithful 10:45 1:11 4:36 10:43 10:44 5/8/1977 Old Faithful 12:00 1:15 4:02 10:56not typo 11:59 5/8/1977 Old Faithful 13:20 1:20 4:19 12:59 13:14 5/8/1977 Old Faithful 14:41 1:21 ~4:48 14:34 14:33 5/8/1977 Old Faithful 15:45 1:04 4:15 15:57 5/8/1977 Old Faithful 16:57 1:12 ~4 16:54 16:58 5/8/1977 Old Faithful 18:10 1:13 4:03 17:57 18:09 5/8/1977 Old Faithful 19:17 1:07 3:43 19:14 19:22 5/8/1977 Old Faithful 20:36 1:19 3:52 20:21 (15m01) 20:27 5/8/1977 Old Faithful 21:46 1:10 4:16 21:42 (4m12) 21:46 5/8/1977 Old Faithful 23:06 1:20 4:00 22:54 (11m51) 23:59 5/8/1977 Giantess active "Steam type eruption,D~15hrs" 5/8/1977 Grand 7:27 3b 5/8/1977 Grand 15:29 ie 3b 5/8/1977 Plume 7:26 5/8/1977 Plume 7:50 5/8/1977 Vault 15:54 5/8/1977 Vault 16:54 5/8/1977 Plume 15:36 5/8/1977 Plume 16:04 5/8/1977 Plume 16:27 5/8/1977 Plume 16:51 5/8/1977 Beehive's Indicator 8:25 5/8/1977 Beehive's Indicator 13:33 5/8/1977 Beehive's Indicator 15:45 to 16:49 5/8/1977 Aurum 9:39 5/8/1977 Depression 18:05 5/8/1977 Giantess 10:30 minor water 5/8/1977 Giantess 2:20not typo 5/8/1977 Castle 12:34 ie 5/8/1977 Castle 21:38 ie 5/8/1977 Riverside 18:23 5/9/1977 Old Faithful 7:40 2:57 5/9/1977 Old Faithful 8:59 1:19 4:00 8:35 8:30 5/9/1977 Old Faithful 10:12 1:13 2:10 10:06 10:17 5/9/1977 Old Faithful 10:56 0:44 4:20 10:50 11:14not typo 5/9/1977 Old Faithful 12:17 1:21 2:55 12:17 12:10 5/9/1977 Old Faithful 13:10 0:53 4:30 13:10 13:30 5/9/1977 Old Faithful 14:35 1:25 2:00 14:22 14:25 5/9/1977 Old Faithful 15:27 0:52 3:25 15:26 15:25 5/9/1977 Old Faithful 16:49 1:22 4:10 16:38 16:40 5/9/1977 Old Faithful 18:02 1:13 18:01 5/9/1977 Old Faithful 19:06 1:04 Long 19:00 5/9/1977 Old Faithful 20:20 1:14 2:06 5/9/1977 Old Faithful 21:07:00 0:47 3:47 21:05 5/9/1977 Fountain 16:30 5/9/1977 Castle 6:45 VR steamphase 5/9/1977 Grand 7:30 5/9/1977 Grand 15:56 5/9/1977 Depression 9:45 5/9/1977 Surge active pm "Intervals 30s-2m,H~10-15'" 5/9/1977 Beehive 17:38 5/9/1977 Riverside 18:15 5/10/1977 Old Faithful 8:18 4:20 8:02 5/10/1977 Old Faithful 9:34 1:16 4:15 9:25 9:31 5/10/1977 Old Faithful 10:39 1:05 4:20 10:38 10:47 5/10/1977 Old Faithful 11:53 1:14 3:31 11:52 5/10/1977 Old Faithful 13:03 1:10 4:25 12:54 13:03 5/10/1977 Old Faithful 14:24 1:21 2:05 14:10 14:18 5/10/1977 Old Faithful 15:12 0:48 4:27 15:03 15:14 5/10/1977 Old Faithful 16:27 1:15 3:00 16:25 16:27 5/10/1977 Old Faithful 17:39 1:12 4:11 17:26 17:37 5/10/1977 Old Faithful 18:46 1:07 4:11 18:43 18:52 5/10/1977 Old Faithful 20:00 1:14 3:55 19:57 (3m09) 19:58 5/10/1977 Old Faithful 21:20 1:20 3:45 21:12 5/10/1977 Little Squirt active 5/10/1977 Beehive 9:51 "D=4m56,S=3m38,I=15h13" 5/10/1977 Beehive's Indicator 9:50 ie 5/10/1977 Beehive's Indicator 17:00 ie 5/10/1977 Giantess 10:08 resumed overflow during night 5/9-5/10 5/10/1977 Castle 19:17 5/10/1977 Castle 5/10/1977 Grand 15:13 ie 5/10/1977 Great Fountain 15:47 "(6m28pause;rain,snow,15-25mph wind)" 5/10/1977 Riverside 17:10 5/10/1977 Riverside 23:25 5/10/1977 Depression 19:46 5/10/1977 Beehive 20:48 5/11/1977 Old Faithful 7:55 ~4 5/11/1977 Old Faithful 9:03 1:08 4:05 9:07 5/11/1977 Old Faithful 10:24 1:21 3:45 10:06 10:15 5/11/1977 Old Faithful 11:34 1:10 4:19 none? 11:34 5/11/1977 Old Faithful 12:44 1:10 2:15 12:38 12:37 5/11/1977 Old Faithful 13:31 0:47 4:33 13:30 13:36 5/11/1977 Old Faithful 14:56 1:25 3:31 14:42 14:46 5/11/1977 Old Faithful 16:06 1:10 4:04 15:58 16:06 5/11/1977 Old Faithful 17:16 1:10 4:40 17:15 17:18 5/11/1977 Old Faithful 18:36 1:20 4:01 18:32 5/11/1977 Lion 9:38 1st of series 5/11/1977 Lion 13:54 5/11/1977 Lion 15:06 5/11/1977 Lion 17:41 5/11/1977 Grand 7:20 VR 5/11/1977 Grand 15:22 5/11/1977 Castle 14:03 ie 5/11/1977 Beehive 10:39 "Hole between B and BI active during B; D~5m,H~4'" 5/11/1977 Beehive's Indicator 10:22 5/11/1977 Riverside 10:41 ie 5/11/1977 Great Fountain 12:11 ie 5/11/1977 Great Fountain 21:07 ie 5/11/1977 Pink Cone 12:41 ie 5/11/1977 Depression 17:59 5/12/1977 Old Faithful 8:59 2:15 5/12/1977 Old Faithful 9:56 0:57 4:39 9:44 9:51 5/12/1977 Old Faithful 11:11 1:15 4:10 11:08 11:11 5/12/1977 Old Faithful 12:19 1:08 4:26 12:12 12:23 5/12/1977 Old Faithful 13:34 1:15 3:54 13:31 13:34 5/12/1977 Old Faithful 14:46 1:12 4:00 14:44 14:46 5/12/1977 Old Faithful 16:00 1:14 4:09 15:52 15:58 5/12/1977 Old Faithful 17:04 1:04 4:04 17:13 5/12/1977 Old Faithful 18:26 1:22 2:05 18:12 18:16 5/12/1977 Old Faithful 19:23 0:57 4:43 19:14 19:16 5/12/1977 Old Faithful 20:34 1:11 3:53 20:23 20:39 5/12/1977 Old Faithful 21:45 1:11 long 21:38 21:44 5/12/1977 Old Faithful 23:00 1:15 4:01 22:53 (6m30) 22:55 5/12/1977 Great Fountain 15:13 Pause=6m14;B1=9m53;pause1=5m28(ovfl=59m) 5/12/1977 Castle 8:05 ie 5/12/1977 Grand 9:21 ie 5/12/1977 Grand 19:51 ie 5/12/1977 Beehive 11:42 5/12/1977 Beehive 23:19 ie 5/12/1977 Depression 21:39 5/12/1977 Till 11:48 ie 5/12/1977 West Flood 11:10 ie 5/12/1977 Riverside 11:00 VR 5/12/1977 Riverside 15:45 5/12/1977 Round 14:54 5/12/1977 Castle 17:43 5/12/1977 White Dome 14:02 5/12/1977 White Dome 14:35 5/12/1977 White Dome 14:54 5/12/1977 White Dome 15:15 5/12/1977 White Dome 15:31 5/13/1977 Old Faithful 8:31 ~4 1/4 8:30 5/13/1977 Old Faithful 9:43 1:12 4:00 9:42 9:43 5/13/1977 Old Faithful 10:58 1:15 3:58 10:55 10:55 5/13/1977 Old Faithful 12:09 1:11 3:59 12:10 5/13/1977 Old Faithful 13:31 1:22 3:54 13:17 13:21 5/13/1977 Old Faithful 14:44 1:13 4:16 14:39 14:42 5/13/1977 Old Faithful 15:54 1:10 3:54 15:49 15:57 5/13/1977 Old Faithful 17:17 1:23 4:04 17:00 17:06 5/13/1977 Old Faithful 18:33 1:16 4:03 18:21 (11m50) 18:29 5/13/1977 Artemisia 17:23 5/13/1977 Round 19:36 5/13/1977 Great Fountain 0:44 (65m overflow;5m pause) 5/13/1977 Great Fountain 14:10ieVR? ??? 5/13/1977 Great Fountain 19:56 (59m overflow;5m13 pause;B1=10m06;P1=5m17) 5/13/1977 Artemisia 7:56 ie 5/13/1977 Beehive 11:04 5/13/1977 Beehive 21:22 ie 5/13/1977 Beehive's Indicator 11:58 5/13/1977 Grand 11:17 5/13/1977 Grand 7:40not typoVR 5/13/1977 Castle 11:59 5/13/1977 Castle 21:32 ie 5/13/1977 Spiteful 12:43 1st eruption 5/13/1977 Mortar 12:44 (minor) 5/13/1977 Little Squirt ~09:30 began 5/13/1977 Riverside 16:01 5/13/1977 Riverside 21:46 5/14/1977 Old Faithful 7:26 3:58 7:24 (2m37) with Beehive1m56s 5/14/1977 Old Faithful 8:42 1:16 3:57 8:40 8:38 5/14/1977 Old Faithful 9:57 1:15 3:38 9:47 9:54 5/14/1977 Old Faithful 11:02 1:05 4:19 11:00 11:07 5/14/1977 Old Faithful 12:17 1:15 3:47 12:03 12:15 5/14/1977 Old Faithful 13:28 1:11 4:15 13:26 13:27 5/14/1977 Old Faithful 14:51 1:23 4:01 14:38 14:41 5/14/1977 Old Faithful 15:59 1:08 4:05 15:56 16:04 5/14/1977 Old Faithful 17:08 1:09 3:36 17:00 17:11 5/14/1977 Old Faithful 18:14 1:06 4:12 18:13 18:18 5/14/1977 Old Faithful 19:30 1:16 2:00 19:26 (3m54) 19:27 5/14/1977 Old Faithful 20:26 0:56 4:35 20:15 20:20 5/14/1977 Old Faithful 21:54 1:28 3:49 21:41 5/14/1977 Old Faithful 23:11 1:17 2:20 23:04 5/14/1977 Castle 6:54 5/14/1977 Castle 22:30 ie I~15h36 5/14/1977 Beehive 7:23 "D=4m59,s=3m28;I=10h01" 5/14/1977 Beehive 17:55 "D=4m41,s=3m24" 5/14/1977 Beehive's Indicator 7:19 ie 5/14/1977 Beehive's Indicator 17:33 5/14/1977 Riverside 9:02 5/14/1977 Riverside 15:15 5/14/1977 Dome 9:40 active 5/14/1977 Grand 9:41 3b 5/14/1977 Grand 16:52 5/14/1977 Depression 11:15 5/14/1977 Depression 17:01 5/14/1977 Great Fountain 14:11 4m19 pause 5/14/1977 Oblong 16:52 ie 5/15/1977 Old Faithful 8:03 4:18 5/15/1977 Old Faithful 9:21 1:18 3:25 9:10 9:16 5/15/1977 Old Faithful 10:27 1:06 4:10 10:31 5/15/1977 Old Faithful 11:44 1:17 4:20 11:43 11:40 5/15/1977 Old Faithful 13:01 1:17 3:55 12:53 12:57 5/15/1977 Old Faithful 14:18 1:17 3:50 14:09 14:13 5/15/1977 Old Faithful 15:25 1:07 3:17 15:30 5/15/1977 Old Faithful 16:39 1:14 4:30 16:39 16:35 5/15/1977 Old Faithful 17:49 1:10 """short""" 17:54 5/15/1977 Old Faithful 18:52 1:03 4:34 18:34 5/15/1977 Old Faithful 20:06 1:14 3:59 20:00 (5m58) 20:07 5/15/1977 Old Faithful 21:16 1:10 3:52 21:10 (5m42) 21:16 5/15/1977 Old Faithful 22:28 1:12 4:08 22:21 22:26 5/15/1977 Old Faithful 23:45 1:17 3:45 23:41 5/15/1977 Castle 8:14:00 5/15/1977 Castle 17:30 D=16m(9min preplay) 5/15/1977 Lion 10:01 ie 5/15/1977 Lion 12:11 ie 5/15/1977 Lion 14:57 ie 5/15/1977 Lion 15:19:00 5/15/1977 Lion 17:51 (minor) 5/15/1977 Great Fountain 11:20 5/15/1977 Great Fountain 19:40 ie 5/15/1977 Fountain 10:58 ie 5/15/1977 Spiteful 2:30 5/15/1977 Dome 16:35 active all day 5/15/1977 Beehive 16:11 5/15/1977 White Dome 10:38 5/15/1977 White Dome 11:04 5/15/1977 White Dome 11:30 5/15/1977 Grand 22:19 ie 5/15/1977 Plume 17:20 5/15/1977 Plume 17:40 5/15/1977 Plume 18:06 5/15/1977 Plume 18:33 5/16/1977 Old Faithful ~07:55 5/16/1977 Old Faithful 9:13 ~1:18 3:50 9:03 9:05 5/16/1977 Old Faithful 10:29 1:16 4:10 10:24 10:23 5/16/1977 Old Faithful 12:00 1:31 4:25 11:36 11:42 5/16/1977 Old Faithful 13:14 1:14 3:28 13:09 13:13 5/16/1977 Old Faithful 14:30 1:16 2:15 14:13 14:24 5/16/1977 Old Faithful 15:15 0:45 4:30 15:15 15:20 5/16/1977 Old Faithful 16:32 1:17 ~3:46 snow 16:30 5/16/1977 Old Faithful 17:37 1:05 ~4:05 17:42 5/16/1977 Old Faithful 18:49 1:12 4:13 18:42 18:49 5/16/1977 Old Faithful 20:02 1:13 4:12 19:59 20:02 5/16/1977 Old Faithful 21:20 1:18 3:45 21:11 (8m39) 21:15 5/16/1977 Beehive 12:43 5/16/1977 Beehive's Indicator 12:30 ie 5/16/1977 Dome 8:59 active all AM 5/16/1977 Castle 11:51 5/16/1977 Great Fountain 13:06 ie 5/16/1977 Grand 12:56 (3b) 5/16/1977 Riverside 12:48 ie 5/16/1977 Oblong 13:28 5/16/1977 Spiteful 14:20 to 25:45 5/16/1977 Fan 14:21 5/16/1977 Mortar 14:21 1421 1/2to 1421 3/4;1424 1/2to27 5/17/1977 Old Faithful 8:12 8:09 5/17/1977 Old Faithful 9:20 1:08 9:20 9:26 5/17/1977 Old Faithful 10:33 1:13 10:36 5/17/1977 Old Faithful 11:27 0:54 11:19 11:20 5/17/1977 Old Faithful 12:44 1:17 12:44 12:39 5/17/1977 Old Faithful 13:45 1:01 13:32 13:34 5/17/1977 Old Faithful 15:09 1:24 14:54 15:00 5/17/1977 Old Faithful 15:58 0:49 15:56 15:56 5/17/1977 Old Faithful 17:21 1:23 17:07 17:13 5/17/1977 Old Faithful ~18:36 ~1:15 18:33 5/17/1977 Old Faithful 19:47 ~1:11 5/17/1977 Old Faithful 20:55 1:08 20:53 20:59 5/17/1977 Old Faithful 22:15 1:20 22:10 5/17/1977 Snort active p.m. 5/17/1977 Great Fountain 8:24 (5m52 pause) 5/17/1977 Great Fountain 18:13 ie 5/17/1977 Beehive 13:23 5/17/1977 Grand 15:11 ie 5/17/1977 Depression 15:15 ie 5/17/1977 Depression 20:48 5/17/1977 Riverside 13:15 VR 5/17/1977 Castle 16:20 ie 5/17/1977 Fountain 17:28 ie 5/17/1977 Kidney 16:20 ie 5/17/1977 Kidney 17:25 5/18/1977 Old Faithful ~07:30 ~3 1/2 5/18/1977 Old Faithful 8:54 ~1:24 ~4 1/2 8:37 ~08:40 5/18/1977 Old Faithful 10:07 1:13 4:00 10:09 5/18/1977 Old Faithful 11:16 1:09 4:15 11:13 11:17 5/18/1977 Old Faithful 12:30 1:14 4:15 12:28 12:29 5/18/1977 Old Faithful 13:47 1:17 4:30 13:41 13:43 5/18/1977 Old Faithful 15:01 1:14 >4 14:57 snow 15:02 5/18/1977 Old Faithful 16:09 1:08 ~3:45 16:14 5/18/1977 Old Faithful 17:21 1:12 4:15 17:18 17:19 5/18/1977 Old Faithful 18:30 1:09 3:47 18:27 18:34 5/18/1977 Old Faithful 19:48 1:18 4:13 19:42 19:40 5/18/1977 Old Faithful 21:08 1:20 ~20:50 21:01 5/18/1977 Beehive ~12:30 VR 0955 cone walker OF 5/18/1977 Great Fountain 12:04 "minor burst after 86s,main burst after 5m24s pause" 5/18/1977 Great Fountain 22:31 (5m32 pause) 5/18/1977 Depression 12:56 ie 5/18/1977 Depression 18:38 5/18/1977 Grand 14:26 "1b=10m10s, 1p=32s, 2b=51s" 5/18/1977 Castle 14:03 ie 5/18/1977 Spiteful 15:11 ie to 1516(w/Mortar minor) 5/18/1977 Riverside 17:33 5/18/1977 Round 20:13 5/18/1977 Giantess 20:28 Steamphase type Dur~12 5/18/1977 Giantess 21:02 steam phase 5/19/1977 Old Faithful 8:38 4:14 8:30 5/19/1977 Old Faithful 9:48 1:10 ~3 1/4 9:51 5/19/1977 Old Faithful 11:09 1:21 3:39? 10:57 10:58 5/19/1977 Old Faithful 12:26 1:17 4:10 12:16 12:19 5/19/1977 Old Faithful 13:37 1:11 4:6not typo 13:33 13:38 5/19/1977 Old Faithful 14:50 1:13 4:10 14:47 14:49 5/19/1977 Old Faithful 16:00 1:10 3:51 16:03 5/19/1977 Old Faithful 17:12 1:12 3:47 17:12 5/19/1977 Old Faithful 18:21 1:09 1:57 18:18 18:24 5/19/1977 Old Faithful 19:17 0:56 4:20 19:08 (9m22) 19:11 5/19/1977 Old Faithful 20:37 1:20 4:02 20:23 top of tree 20:30 5/19/1977 Old Faithful 21:54 1:17 4:16 2142 (11m34) 21:49 5/19/1977 Great Fountain 16:00 ieVR 5/19/1977 Castle 8:29 ie 5/19/1977 Castle 17:40 ie 5/19/1977 Great Fountain 7:46 5/19/1977 Beehive 12:39 5/19/1977 Beehive 21:41 D=5m02 5/19/1977 Oblong 15:00 5/19/1977 Grand 15:03 "5b, D>16m" 5/19/1977 Vault 15:37 5/19/1977 Depression 15:41 5/19/1977 Daisy & Splendid have emptied since 5/18. 5/19/1977 Bonita full again 15:00 5/20/1977 Old Faithful 8:37 3:40 8:27 5/20/1977 Old Faithful 10:03 1:26 4:12 9:44 9:47 5/20/1977 Old Faithful 11:15 1:12 4:05 11:13 11:16 5/20/1977 Old Faithful 12:34 1:19 3:54 12:23 12:26 5/20/1977 Old Faithful 13:42 1:08 2:45 13:41 13:44 5/20/1977 Old Faithful 14:34 0:52 4:17 14:38 5/20/1977 Old Faithful 15:48 1:14 3:51 15:44 15:47 5/20/1977 Old Faithful 16:58 1:10 2:40 16:52 16:59 5/20/1977 Old Faithful 17:52 0:54 4:48 17:53 5/20/1977 Old Faithful 19:17 1:25 2:01 19:13 (4m04) 19:08 5/20/1977 Old Faithful 20:12 0:55 4:08 20:02 20:07 5/20/1977 Old Faithful 21:24 1:12 1:58 21:21 (3m10) 21:25 5/20/1977 Great Fountain 10:37 5/20/1977 Great Fountain 19:13 ie 5/20/1977 Fountain 9:30 ie 5/20/1977 Beehive 10:45 5/20/1977 Castle 12:00 5/20/1977 Castle 21:15 ie 5/20/1977 Grand 17:50 ie 5/20/1977 White Dome 9:58 5/20/1977 White Dome 10:13 5/20/1977 White Dome 10:50 5/21/1977 Old Faithful 8:11 ? 5/21/1977 Old Faithful 9:31:00 1:20 3:50 9:21 5/21/1977 Old Faithful 10:56:00 1:25 4:21 ~10:46 10:44 5/21/1977 Old Faithful 12:12 1:16 2:20 12:03 12:12 5/21/1977 Old Faithful 13:20 1:08 4:01 12:56 13:04 5/21/1977 Old Faithful 14:37 1:17 2:58 14:30 14:34 5/21/1977 Old Faithful 15:24 0:47 4:01 15:50 5/21/1977 Old Faithful 16:48 1:24 1:34 16:40 16:36 5/21/1977 Old Faithful 17:51 1:03 4:09 17:27 17:33 5/21/1977 Old Faithful 19:05 1:14 2:15 18:56 (9m10) 19:04 5/21/1977 Old Faithful 19:52 0:47 4:31 19:51 (1m55) 19:57 5/21/1977 Old Faithful 21:08:00 1:16 5/21/1977 Plume 19:42 5/21/1977 Plume 20:07 5/21/1977 Plume 20:34 5/21/1977 Plume 21:04 5/21/1977 Beehive 11:02 5/21/1977 Beehive 22:45 VR 5/21/1977 Beehive's Indicator 10:28 5/21/1977 Beehive's Indicator 18:14 ie 5/21/1977 Depression drop of ~4 ft 5/21/1977 Grand 12:36 2b 5/21/1977 Riverside 11:10 ie 5/21/1977 Great Fountain 14:37 5/21/1977 Great Fountain 23:16 (5m41 pause) 5/21/1977 Castle 15:49 5/21/1977 Artemisia 16:00 4:00pm 5/21/1977 Spiteful 15:45 3:45pm 5/22/1977 Old Faithful ~08:27 5/22/1977 Old Faithful 9:35 ~1:08 3:50 9:29 9:30 5/22/1977 Old Faithful 10:42 1:07 3:52 10:47 5/22/1977 Old Faithful 12:14 1:32 4:01 11:43 11:52 5/22/1977 Old Faithful 13:24 1:10 ~2:00 13:24 13:27 5/22/1977 Old Faithful 14:13 0:49 3:51 14:09 14:14 5/22/1977 Old Faithful 15:35 1:22 2:15 15:27 15:24 5/22/1977 Old Faithful 16:22 0:47 3:05 16:27 5/22/1977 Old Faithful 17:36 1:14 1:55 17:28 17:22 5/22/1977 Old Faithful ? 18:26 5/22/1977 Old Faithful 19:48 long 5/22/1977 Old Faithful 20:59 1:11 1:58 20:53 21:00 5/22/1977 Old Faithful 21:46 0:47 4:29 5/22/1977 Castle ~10:00 ie 5/22/1977 Castle 19:15 ie 5/22/1977 Grand (17:16) 5/22/1977 Riverside 11:45 at least 74m overflow 5/22/1977 Great Fountain 9:03 5/22/1977 Great Fountain 19:47 5/22/1977 Fountain 9:05 ie 5/22/1977 Rocket 11:18 5/22/1977 Beehive 13:44 5/22/1977 Beehive 23:58 5/23/1977 Old Faithful 8:42 1:55 8:40 5/23/1977 Old Faithful 9:30 0:48 4:20 9:30 9:32 5/23/1977 Old Faithful 10:48 1:18 2:00 10:47 10:43 5/23/1977 Old Faithful 11:46 0:58 4:46 11:38 5/23/1977 Old Faithful 13:04 1:18 1:44 13:02 5/23/1977 Old Faithful 13:57 0:53 4:30 13:48 13:52 5/23/1977 Old Faithful 15:09 1:12 4:30 15:08 15:12 5/23/1977 Old Faithful 16:24 1:15 3:15 16:22 16:24 5/23/1977 Old Faithful 17:33 1:09 3:32 15:29 17:29 5/23/1977 Old Faithful 18:52 1:19 4:01 18:36 top of tree 18:43 5/23/1977 Old Faithful 20:08 1:16 4:05 19:58 20:04 5/23/1977 Old Faithful 21:31 1:23 2:16 5/23/1977 Castle 14:41 ie water 5/23/1977 Great Fountain 13:10 ie 5/23/1977 Great Fountain 21:43 VR 5/23/1977 Lion 16:11 ie 5/23/1977 Beehive 12:15 5/23/1977 Fan & Mortar ~09:30 ie 5/24/1977 Old Faithful 9:03 3:15 8:58 5/24/1977 Old Faithful 10:13 1:10 3:42 10:08 10:08 5/24/1977 Old Faithful 11:25 1:12 4:05 11:17 11:23 5/24/1977 Old Faithful 12:34 1:09 4:01 12:30 12:37 5/24/1977 Old Faithful 13:50 1:16 2:27 13:37 13:46 5/24/1977 Old Faithful 14:41 0:51 4:06 14:35 14:45 5/24/1977 Old Faithful 15:58 1:17 ~2:20 15:49 15:53 5/24/1977 Old Faithful 16:55 0:57 4:39 16:50 16:50 5/24/1977 Old Faithful 18:09 1:14 18:11 5/24/1977 Old Faithful 19:30 VR 1:21 5/24/1977 Old Faithful 20:34 1:04 4:47 20:24 5/24/1977 Old Faithful 21:54 1:20 2:10 21:40 (13m41) 21:50 5/24/1977 Little Squirt active pm 5/24/1977 Castle 8:58 ie 5/24/1977 Castle 18:20 ie 5/24/1977 Grand 7:45 ie 5/24/1977 Grand 15:43 ie 5/24/1977 Riverside 11:04 5/24/1977 Riverside 16:49 VR 1658ie 5/24/1977 Great Fountain 6:23 ie plus or -5m 5/24/1977 Great Fountain 19:16 I=12h53plus or-5m 5/24/1977 Lion 9:18 ie 5/24/1977 Lion 9:49 5/24/1977 Round ~12:40 5/24/1977 Beehive 13:17 5/25/1977 Old Faithful 7:33 5/25/1977 Old Faithful 8:42 1:09 3:26 8:37 5/25/1977 Old Faithful 9:50 1:08 4:03 9:49 9:52 5/25/1977 Old Faithful 11:05 1:15 4:22 11:02 11:02 5/25/1977 Old Faithful 12:18 1:13 4:05 12:14 12:19 5/25/1977 Old Faithful 13:29 1:11 2:10 13:25 13:30 5/25/1977 Old Faithful 14:16 0:47 4:27 14:15 14:21 5/25/1977 Old Faithful 15:32 1:16 1:56 15:32 15:31 5/25/1977 Old Faithful 16:32 1:00 4:34 16:20 16:22 5/25/1977 Old Faithful 17:47 1:15 2:34 17:45 17:47 5/25/1977 Old Faithful 18:46 0:59 4:50 18:31 (14m05) 18:37 5/25/1977 Old Faithful 20:06 1:20 2:48 19:56 (9m05) 20:02 5/25/1977 Old Faithful 20:57 0:51 4:54 none 21:01 5/25/1977 Old Faithful 22:12 1:15 3:55 22:10 (2m21) 22:13 5/25/1977 Beehive 15:22 5/25/1977 Castle 14:54 5/25/1977 Grand 8:18 ie 5/25/1977 Grand 4:00no typo ie 5/25/1977 Grand 22:16 5/25/1977 Great Fountain 21:32 (pause=7m50) 5/25/1977 Riverside ~11:00 5/25/1977 Riverside 22:59 5/26/1977 Old Faithful 9:22 2:01 9:12 5/26/1977 Old Faithful 10:08 0:46 4:04 10:12 5/26/1977 Old Faithful 11:28 1:20 3:52 11:24 11:20 5/26/1977 Old Faithful ~12:35 ~1:07 ~3:00 12:39 5/26/1977 Old Faithful 13:53 ~1:18 3:54 13:40 170' 13:35 5/26/1977 Old Faithful 15:08 1:15 3:57 15:05 15:05 5/26/1977 Old Faithful 16:17 1:09 ~3 1/2? 16:20 5/26/1977 Old Faithful 17:34 1:17 2:04 17:28 17:26 5/26/1977 Old Faithful 18:27 0:53 4:31 18:24 5/26/1977 Old Faithful 19:54 1:27 ~4 1/4 19:39 19:42 5/26/1977 Old Faithful 20:59 1:05 ~2 21:07 5/26/1977 Old Faithful 21:46 0:47 4:09 21:49 5/26/1977 Old Faithful 23:03 1:17 2:13 22:53 22:59 5/26/1977 Depression 14:39 5/26/1977 Depression 20:21 5/26/1977 Castle 10:10 5/26/1977 Castle 19:27 5/26/1977 Grand 16:22 VR 4 Burst 5/26/1977 Riverside 11:15 5/26/1977 Great Fountain 15:53 (Pause=5m52) 5/26/1977 Lion 13:35 5/26/1977 Lion 16:33 5/26/1977 Beehive 16:05 5/26/1977 Round between2010&2018 5/27/1977 Old Faithful 9:13 3:44 9:10 5/27/1977 Old Faithful 10:23 1:10 4:06 10:27 10:23 5/27/1977 Old Faithful 11:33 1:10 1:30 11:32 11:36 5/27/1977 Old Faithful 12:30 0:57 4:32 12:29 12:18 5/27/1977 Old Faithful 13:41 1:11 3:28 13:38 1:45not typo 5/27/1977 Old Faithful 14:52 1:11 4:07 14:51 14:48 5/27/1977 Old Faithful 16:14 1:22 4:21 w/Beehive 16:04 5/27/1977 Old Faithful 17:25 1:11 1:51 17:24 17:29 5/27/1977 Beehive 16:16 concerted w/OF 5/27/1977 Castle 13:55 ie 5/27/1977 Grand ~08:15 VR 5/27/1977 Grand 15:34 (3b) 5/27/1977 Great Fountain 10:56 (pause 6m10s) 5/27/1977 Lion 9:40 5/27/1977 Lion 11:56 ie 5/27/1977 Lion 12:40 5/28/1977 Old Faithful 8:23 2:55 5/28/1977 Old Faithful 9:37 1:14 3:45 9:27 9:23 5/28/1977 Old Faithful 10:55 1:18 2:01 10:48 10:47 5/28/1977 Old Faithful 11:48 0:53 4:30 11:45 5/28/1977 Old Faithful 13:02 1:14 4:00 13:00 5/28/1977 Old Faithful 14:17 1:15 3:53 14:15 5/28/1977 Old Faithful 15:38 1:21 3:59 15:35 15:28 5/28/1977 Old Faithful 16:49 1:11 2:22 15:44not typo 16:50 5/28/1977 Old Faithful 17:47 0:58 4:38 17:41 5/28/1977 Old Faithful 19:02 5/28/1977 Old Faithful 20:18 5/28/1977 Beehive 5:30 ie 5/28/1977 Beehive 16:35 5/28/1977 Beehive's Indicator 16:20 ie 5/28/1977 Depression 13:56 ie 5/28/1977 Castle 9:10 ie 5/28/1977 Castle 17:35 ie 5/28/1977 Grand 6:45 ie 3 burst 5/28/1977 Grand 14:41 5/28/1977 Riverside 11:16 5/28/1977 Great Fountain 8:00:00 ie 5/28/1977 Spiteful & Mortar 11:04 5/28/1977 West Vent of Anomae erupted 2 ft!! 5/29/1977 Old Faithful 7:47 5/29/1977 Old Faithful 9:07 1:20 2:55 9:01 5/29/1977 Old Faithful 10:07 1:00 3:38 10:07 5/29/1977 Old Faithful 11:20 1:13 2:21 11:18 11:17 5/29/1977 Old Faithful 12:10 0:50 4:38 12:09 12:13 5/29/1977 Old Faithful 13:34 1:24 1:55 13:25 13:25 5/29/1977 Old Faithful 14:20 0:46 4:24 14:24 5/29/1977 Old Faithful 15:35 1:15 2:13 15:32 15:34 5/29/1977 Old Faithful 16:29 0:54 4:30 16:27 5/29/1977 Old Faithful 17:47 1:18 2:40 17:41 17:41 5/29/1977 Riverside 19:00 between 1900-1920 5/29/1977 Great Fountain 11:00 ie 5/29/1977 Beehive 6:24 5/29/1977 Beehive 18:00 5/29/1977 Depression 6:54 5/29/1977 Castle 7:35 5/29/1977 Castle 17:17 5/29/1977 Grand 12:45 ieVR 5bVR 5/29/1977 Grand 20:47 (3b) 5/30/1977 Old Faithful 8:28 1:58 5/30/1977 Old Faithful 9:22 0:54 3:30 9:18 5/30/1977 Old Faithful 10:32 1:10 2:02 10:32 10:32 5/30/1977 Old Faithful 11:29 0:57 4:39 11:17 11:22 5/30/1977 Old Faithful 12:46 1:17 2:07 12:40 12:44 5/30/1977 Old Faithful 13:32 0:46 3:43 13:37 5/30/1977 Old Faithful 14:57 1:25 1:50 14:55 14:42 5/30/1977 Old Faithful 15:41 0:44 3:30 15:44 5/30/1977 Old Faithful 17:08 1:27 2:11 16:52 16:51 5/30/1977 Old Faithful 17:55 0:47 4:10 5/30/1977 Old Faithful 19:10 1:15 1:59 19:05 19:08 5/30/1977 Old Faithful 20:08 0:58 long 20:00 5/30/1977 Beehive 20:27 5/30/1977 Beehive's Indicator 20:08 ie 5/30/1977 Riverside 13:20 5/30/1977 Lion 9:30 5/30/1977 Lion 12:11 5/30/1977 Lion 13:38 5/30/1977 Lion 15:37 5/30/1977 Lion 17:07 5/30/1977 Lion 20:47 5/30/1977 Depression 12:11 5/30/1977 Grand 12:24 (4B's) 5/30/1977 Grand 19:50 ie (3b) 5/30/1977 Atomizer 14:23 (minor) 5/30/1977 Castle 10:45 ieVR 5/30/1977 Castle 20:44 5/30/1977 Oblong 12:11 5/31/1977 Old Faithful 6:35 short 5/31/1977 Old Faithful 7:23 0:48 4:19? 7:22 5/31/1977 Old Faithful 8:41 1:18 1:48 8:40 5/31/1977 Old Faithful 9:43 1:02 3:25 9:34 5/31/1977 Old Faithful 11:08 1:25 ~3:42 10:57 5/31/1977 Old Faithful 12:14 1:06 4:12 5/31/1977 Old Faithful 13:35 1:21 3:38 13:25 5/31/1977 Old Faithful 14:42 1:07 4:11 15:42 5/31/1977 Old Faithful 16:10 1:28 3:27 15:51 5/31/1977 Old Faithful 17:10 1:00 4:24 17:05 5/31/1977 Old Faithful 18:22 1:12 2:11 18:22<1min 5/31/1977 Old Faithful 19:40 1:18 4:25 19:05 very tall 5/31/1977 Old Faithful 21:01 1:21 4:09 20:50 very tall 5/31/1977 Old Faithful 22:14 1:13 3:45 5/31/1977 Old Faithful 23:24 1:10 ~3:00 5/31/1977 Old Faithful 24:37not typo 1:13 5/31/1977 Turban 10:59 (5m) JohnRaileySpecVIP 5/31/1977 Turban 11:21 (5m) JR 5/31/1977 Turban 11:42 (5m) JR 5/31/1977 Turban 12:02 (5m) JR 5/31/1977 Turban 12:22 (3m) JR 5/31/1977 Turban 12:40 (4m) JR 5/31/1977 Turban 18:03 (5m) JR 5/31/1977 Turban 18:24 (5m) JR 5/31/1977 Turban 18:45 (5m) JR 5/31/1977 Turban 19:06 (6m) JR 5/31/1977 Turban 19:27 (3m) JR 5/31/1977 Turban 19:47 (5m) JR 5/31/1977 Turban 20:07 (7m) JR 5/31/1977 Turban 20:29 (5m) JR 5/31/1977 Lion 10:15 ie 5/31/1977 Lion 12:45 ie 5/31/1977 Lion 15:07 5/31/1977 Lion 17:21 5/31/1977 Castle 6:20 ie 5/31/1977 Castle 15:13 5/31/1977 "Grotto,Grotto Ftn.,S.Grotto Ftn." 13:40 5/31/1977 Grand 12:59 (2b) 5/31/1977 Grand 20:57 (3b) 5/31/1977 Rift 2:05 ie 5/31/1977 Rift 18:01 ie 5/31/1977 Riverside 14:00 5/31/1977 Great Fountain 8:30 VR 5/31/1977 Great Fountain 17:20 VR 5/31/1977 Beehive 9:30 ie 5/31/1977 Beehive 20:21 5/31/1977 Depression 9:31 6/1/1977 Old Faithful 7:30 2:00 6/1/1977 Old Faithful 8:19 0:49 3:53 8:20 6/1/1977 Old Faithful 9:43 1:24 1:52 9:31 6/1/1977 Old Faithful 10:30 0:47 4:17 10:32 6/1/1977 Old Faithful 11:53 1:23 3:44 11:43 6/1/1977 Old Faithful 13:02 1:09 1:38 13:03 6/1/1977 Old Faithful 13:59 0:57 4:13 13:48 6/1/1977 Old Faithful 15:30 1:31 1:53 15:12 6/1/1977 Old Faithful 16:16 0:46 4:43 16:22 6/1/1977 Old Faithful 17:28 1:12 3:28 17:32 6/1/1977 Old Faithful 18:34 1:06 3:54 18:38 6/1/1977 Old Faithful 19:47 1:13 1:59 19:46 6/1/1977 Old Faithful 20:41 0:54 4:23 20:31 20:37 6/1/1977 Old Faithful 22:06 1:25 3:25 6/1/1977 Old Faithful 23:17 1:11 4:25 23:16 6/1/1977 Spa 19:29 H=20' 6/1/1977 Oblong 19:29 6/1/1977 Round 13:45 6/1/1977 Dome 10:21 1st eruption 6/1/1977 Dome 15:15 6/1/1977 Castle 10:35 ieVR 6/1/1977 Castle 19:46 6/1/1977 Grand 12:02 (3B) 6/1/1977 Grand 19:51 "3b,14min,1min,1 1/2min" 6/1/1977 White Dome 9:00 VR 6/1/1977 Riverside 13:36 6/1/1977 Riverside 19:52 6/1/1977 Great Fountain 10:00 ieVR 6/1/1977 Great Fountain 20:35 6/1/1977 Beehive 8:19 6/1/1977 Beehive 21:17 D=4m36(s+3m49) 6/1/1977 Beehive's Indicator 16:20 failed 6/1/1977 Beehive's Indicator 20:51 26m 6/1/1977 Depression 10:19 6/1/1977 Depression 16:28 6/1/1977 Depression 20:51 6/2/1977 Old Faithful 7:50 2:16 6/2/1977 Old Faithful 8:42 0:52 4:09 8:42 6/2/1977 Old Faithful 9:56 1:14 3:30 9:54 6/2/1977 Old Faithful 11:11 1:15 4:05 11:02 11:06 6/2/1977 Old Faithful 12:23 1:12 3:00 12:21 6/2/1977 Old Faithful 13:53 1:30 4:22 13:28 170' 13:23 6/2/1977 Old Faithful 15:00 1:07 1:54 15:06 6/2/1977 Old Faithful 16:00 1:00 4:07 15:50 15:50 6/2/1977 Old Faithful 17:21 1:21 2:09 17:20 17:03 6/2/1977 Old Faithful 18:07 0:46 ~3:40 18:11 6/2/1977 Old Faithful 19:22 1:15 3:54 19:17 6/2/1977 Old Faithful 20:39 1:17 4:21 20:28 10m55 20:32 6/2/1977 Round 20:25 6/2/1977 Dome active all day 6/2/1977 Beehive 9: not typo 6/2/1977 Beehive 21:10 "D=4m27,s=3m38" 6/2/1977 Beehive's Indicator 9:22 ie 6/2/1977 Beehive's Indicator 20:41 6/2/1977 Castle 13:50 ie 6/2/1977 Grand 11:50 (3bur) 6/2/1977 Grand 19:27 "2b,11m,total=13m;Turban~21m Int,dur=3,5,5m" 6/2/1977 Riverside 14:17 6/2/1977 Riverside 20:03 6/2/1977 Great Fountain ~17:12 VR 6/2/1977 Crested 19:00 6/2/1977 Depression 15:06 6/2/1977 Depression 21:07 (3m38s) 6/3/1977 Old Faithful 8:28 4:09 8:15 6/3/1977 Old Faithful 9:44 1:16 4:00 9:39 9:41 6/3/1977 Old Faithful 10:51 1:07 4:04 10:42 10:56 6/3/1977 Old Faithful 12:01 1:10 3:44 12:03 6/3/1977 Old Faithful 13:16 1:15 4:00 13:15 13:11 6/3/1977 Old Faithful 14:41 1:25 3:36 14:24 14:28 6/3/1977 Old Faithful 15:44 1:03 3:33 15:41 15:51 6/3/1977 Old Faithful 16:59 1:15 4:08 16:56 16:54 6/3/1977 Old Faithful 18:22 1:23 3:44 18:08 170' + 18:11 6/3/1977 Old Faithful 19:33 1:11 1:40 19:27 19:32 6/3/1977 Old Faithful 20:32 0:59 4:44 20:12 20:20 6/3/1977 Old Faithful 21:49 1:17 3:24 21:44 (4m55) 21:48 6/3/1977 Old Faithful 22:53 1:04 4:21 22:53 (0m15s) 6/3/1977 Beehive 12:18 6/3/1977 Fan & Mortar ~09:30 ieVR (major) 6/3/1977 Round 10:42 6/3/1977 Oblong 11:56 6/3/1977 Castle 17:18 ieVR 6/3/1977 Grand 13:01 (2B's;14 1/2) 6/3/1977 Grand 20:51 "(3b)B1=9m50,P1=40,B2=37,P2=64,B3=35;D=12m46" 6/3/1977 Riverside 13:58 6/3/1977 Great Fountain 10:00 VR 6/3/1977 Great Fountain 19:00 VR 6/3/1977 Beehive's Indicator 8:10 ie 6/3/1977 Beehive's Indicator 19:01 ie 6/4/1977 Old Faithful 8:21 3:12 6/4/1977 Old Faithful 9:35 1:14 4:22 9:26 6/4/1977 Old Faithful 10:51 1:16 3:53 10:45 10:48 6/4/1977 Old Faithful 12:07 1:16 3:29 12:02 6/4/1977 Old Faithful 13:13 1:06 2:07 13:17 6/4/1977 Old Faithful 14:05 0:52 4:24 14:01 14:03 6/4/1977 Old Faithful 15:23 1:18 2:30 15:20 6/4/1977 Old Faithful 16:18 0:55 4:03 16:18 6/4/1977 Old Faithful 17:33 1:15 3:20 17:30 6/4/1977 Old Faithful 18:43 1:10 4:04 18:40 6/4/1977 Old Faithful 20:00 ie 1:17 19:53 6/4/1977 Old Faithful 21:01 1:01 4:35 20:50:21 (11m32) 6/4/1977 Old Faithful 22:15 1:14 1:57 22:16 6/4/1977 Round 21:07 (no Spectacle) 6/4/1977 Lion 20:03 6/4/1977 North Goggles 21:00 (Boardwalk wet) 6/4/1977 Castle 11:00 VR minor 6/4/1977 Castle 15:00 ie 6/4/1977 Grand 5:05 "4bursts, to 5:19" 6/4/1977 Grand 13:37 6/4/1977 Grand 22:00 5bursts 6/4/1977 Riverside 13:45 VR 6/4/1977 Riverside 20:05 6/4/1977 Beehive's Indicator 10:25 ie to~10:55 6/4/1977 Beehive's Indicator 20:46 ie (false) 6/4/1977 Aurum 17:44 6/5/1977 Old Faithful 8:30 3:01 6/5/1977 Old Faithful 9:39 1:09 3:10 9:30 6/5/1977 Old Faithful 10:52 1:13 5:00 10:45 10:42 6/5/1977 Old Faithful 12:01 1:09 1:13 12:08 6/5/1977 Old Faithful 12:51 0:50 3:37 12:45 6/5/1977 Old Faithful 2:03not typo 1:12 3:26 2:02not typo 2:02not typo 6/5/1977 Old Faithful 3:21not typo 1:18 4:26 3:13not typo 6/5/1977 Old Faithful 16:43 1:22 3:33 4:36not typo 6/5/1977 Old Faithful 17:55 1:12 4:02 18:07 6/5/1977 Riverside 14:37 6/5/1977 Oblong 19:22 6/5/1977 Round 13:52 ie (57 sec) 6/5/1977 Castle 9:35 ie 6/5/1977 Castle 18:45 6/5/1977 Beehive 2:41 6/5/1977 Grand 12:49 "D=13m10;B1=9m50,P143,B2=80,P2=40,B3=36" 6/5/1977 Grand 20:30 "D=12m38(3b),B1=9m14;Pi=39,B2=79,P2=18,B3=42;Turban20-21,6m,6m" 6/5/1977 Riverside 14:37 92m overflow 6/5/1977 Lion 10:27 ie 6/5/1977 Lion 13:12 6/5/1977 Lion 16:37 6/5/1977 Lion 18:55 6/5/1977 Riverside 8:25 ie 6/5/1977 Great Fountain 9:10 ieVR 6/5/1977 Great Fountain 17:28 ie 6/5/1977 Depression 8:32 ie 6/6/1977 Old Faithful 7:45 ie 3:13not typo 6/6/1977 Old Faithful 8:52 1:07 2:58 8:50 6/6/1977 Old Faithful 10:01 1:09 3:04 9:48 6/6/1977 Old Faithful 11:10 1:09 3:16 11:03 6/6/1977 Old Faithful 12:24 1:14 2:01 13:14 6/6/1977 Old Faithful 13:10 0:46 4:10 14:22 6/6/1977 Old Faithful 14:27 1:17 2:58 15:27 6/6/1977 Old Faithful 15:42 1:15 4:27 16:57 6/6/1977 Old Faithful 16:58 1:16 1:45 16:50 17:45 6/6/1977 Old Faithful 17:58 1:00 4:36 19:13 6/6/1977 Castle 12:50 ie 6/6/1977 Castle 21:45 ie 6/6/1977 Grand 12:50 "3b;12:49:58 B1=8m38,P1=45;B2=40,P2=69;B3=48,D=12m00" 6/6/1977 Grand 20:44 "2b;B1-9m58,P1=32;B2=51;D=11m21" 6/6/1977 Turban "(1249Grand)intervals20m40,20m02,&29m14(delayed)" 6/6/1977 Riverside 8:55 VR 6/6/1977 Riverside 14:20 VR 6/6/1977 Great Fountain 11:24 6/6/1977 Great Fountain 20:15 ie 6/6/1977 Rift 11:40 6/6/1977 Beehive's Indicator 18:40 6/7/1977 Old Faithful 8:08 4:05 6/7/1977 Old Faithful 9:21 1:13 2:35 9:20 6/7/1977 Old Faithful 10:25 1:04 4:28 10:16 6/7/1977 Old Faithful 11:45 1:20 3:15 11:40 6/7/1977 Old Faithful 13:08 1:23 4:05 12:50 6/7/1977 Old Faithful 14:24 1:16 4:24 14:20 6/7/1977 Old Faithful 15:33 1:09 3:45 15:38 6/7/1977 Old Faithful 16:42 1:09 2:14 16:43 6/7/1977 Old Faithful 17:40 0:58 4:37 17:34 6/7/1977 Old Faithful 18:53 1:13 4:05 18:55 6/7/1977 Round 13:55 6/7/1977 Artemisia 12:57 6/7/1977 Depression 15:53 6/7/1977 Castle 16:41 6/7/1977 Grand 11:50 "D=10m50;B1=7m05,P1=23,B2=1m12,P2=49;B3=41" 6/7/1977 Grand 19:18 "2b;B1=10m26,P1=48s,B2=35s" 6/7/1977 Riverside 8:04 6/7/1977 Riverside 19:46 6/7/1977 Great Fountain 13:26 ie 6/7/1977 Beehive 8:25 6/7/1977 Beehive's Indicator 19:05 ie 6/7/1977 Beehive's Indicator 21:20 to 21:50 6/8/1977 Old Faithful ~07:30 6/8/1977 Old Faithful 8:34 ~1:04 4:00 6/8/1977 Old Faithful 9:48 1:14 2:18 9:46 6/8/1977 Old Faithful 10:40 0:52 4:21 10:40 6/8/1977 Old Faithful 12:04 1:24 3:58 11:53 6/8/1977 Old Faithful 13:17 1:13 4:04 13:16 6/8/1977 Old Faithful 14:23 1:06 3:35 6/8/1977 Old Faithful 15:33 1:10 15:33 6/8/1977 Old Faithful 16:45 1:12 4:09 16:46 6/8/1977 Old Faithful 18:15 1:30 4:07 17:28 6/8/1977 Old Faithful 19:21 1:06 ~3 3/4 6/8/1977 Old Faithful 20:27 1:06 3:51 20:31 6/8/1977 Beehive's Indicator 8:45 ie 6/8/1977 Beehive's Indicator 19:20 ie 6/8/1977 Castle 10:45 ie 6/8/1977 Castle 19:57 6/8/1977 Grand 9:47 "3b;B1=8m48,P1=40;B2=38,P2=57;B3=41,D=11m44,Turban1st" 6/8/1977 Grand 20:19 "2b;B1=10m44,P1=46;B2=57;D=12m27" 6/8/1977 Riverside 13:56 6/8/1977 Riverside 19:42 I =5h46m 6/8/1977 Great Fountain 9:40 VR 6/8/1977 Round 19:00 6/9/1977 Old Faithful 8:18 2:22 6/9/1977 Old Faithful 9:09 0:51 4:33 9:12 6/9/1977 Old Faithful 10:29 1:20 4:00 10:24 6/9/1977 Old Faithful 11:47 1:18 1:56 11:41 6/9/1977 Old Faithful 12:40 0:53 4:14 12:37 6/9/1977 Old Faithful 14:05 1:25 3:46 13:53 6/9/1977 Old Faithful 15:12 1:07 2:29 15:15 6/9/1977 Old Faithful 16:08 0:56 4:31 16:07 6/9/1977 Old Faithful 17:24 1:16 1:52 17:23 6/9/1977 Old Faithful 18:21 0:57 4:32 18:14 6/9/1977 Old Faithful 21:00 Long 19:36 6/9/1977 Grand 10:10 VR 2b 6/9/1977 Grand 17:26 "D=12m09;B1=10m42,P1=55;B2=32" 6/9/1977 Round 9:07 6/9/1977 Great Fountain 12:44 6/9/1977 Beehive's Indicator 13:36 ie D> or = 35m 6/9/1977 Castle 14:00 ie 6/9/1977 Castle 23:00 ie 6/9/1977 Riverside 13:29 6/9/1977 Riverside 19:20 6/10/1977 Old Faithful 8:47 3:58 6/10/1977 Old Faithful 9:59 1:12 3:59 9:59 6/10/1977 Old Faithful 11:10 1:11 4:12 11:11 6/10/1977 Old Faithful 12:28 1:18 1:40 12:23 6/10/1977 Old Faithful 13:13 0:45 3:45 13:15 6/10/1977 Old Faithful 14:34 1:21 2:12 14:23 6/10/1977 Old Faithful 15:31 0:57 4:37 15:26 6/10/1977 Old Faithful 16:45 1:14 1:59 16:46 6/10/1977 Old Faithful 17:43 0:58 4:25 17:35 6/10/1977 Old Faithful 18:55 1:12 2:09 18:58 6/10/1977 Old Faithful 19:49 0:54 4:30 19:47 6/10/1977 Old Faithful 21:13 1:24 2:09 6/10/1977 Castle 8:02 ie water phase 6/10/1977 Castle 17:28 6/10/1977 Great Fountain 8:10 6/10/1977 Great Fountain 17:10 6/10/1977 Grand 8:54 "B1=9m25;P1=150s,B2=83;D=13m18" 6/10/1977 Grand 16:59 "B1=7m12;P1=30,B2=38;P2=27,B3=60;P3=53,B4=65;D=11m45s" 6/10/1977 Riverside 13:19:00 D=20m 6/10/1977 Beehive's Indicator 8:45:00 ie 6/10/1977 Beehive's Indicator 11:45 ie 6/10/1977 Beehive's Indicator 15:30 ie to~1555 6/10/1977 Beehive's Indicator 21:18 6/10/1977 Lion 10:15 6/10/1977 Lion 11:11 6/10/1977 Lion 13:51 6/10/1977 Lion 15:22:00 6/10/1977 Depression 12:03 6/10/1977 Depression 17:16 6/11/1977 Old Faithful 7:52 4:19 6/11/1977 Old Faithful 9:01 1:09 2:27 9:05 6/11/1977 Old Faithful 10:00 0:59 4:40 9:55 6/11/1977 Old Faithful 11:23 1:23 3:07 11:16 6/11/1977 Old Faithful 12:36 1:13 4:23 12:28 6/11/1977 Old Faithful 14:00 1:24 4:29 13:51 6/11/1977 Old Faithful 15:04 1:04 4:13 15:15 6/11/1977 Old Faithful 16:28 1:24 3:37 16:17 6/11/1977 Old Faithful 17:40 1:12 4:10 17:38 6/11/1977 Old Faithful 18:50 1:10 3:30 18:53 6/11/1977 Castle 11:37 6/11/1977 Grand 16:40 6/11/1977 Riverside 7:10 VR 6/11/1977 Riverside 12:51 6/11/1977 Riverside 19:14 6/11/1977 Great Fountain 18:57 VR 6/11/1977 Beehive's Indicator 14:22 ie 6/11/1977 Beehive's Indicator 18:06 6/11/1977 Beehive's Indicator 21:20 6/11/1977 Depression 9:11 ie 6/11/1977 Artemisia 20:21 D=19 6/11/1977 Fountain 19:30 ie 6/12/1977 Old Faithful 7:20 peasoup 6/12/1977 Old Faithful 8:35 VR 1:15 fog 6/12/1977 Old Faithful 9:30 0:55 3:30 ~09:40 6/12/1977 Old Faithful 10:47 1:17 1:52 10:40 6/12/1977 Old Faithful 11:40 0:53 3:53 11:32 6/12/1977 Old Faithful 13:04 1:24 3:35 12:52 6/12/1977 Old Faithful 14:09 1:05 4:28 14:14 6/12/1977 Old Faithful 15:36 1:27 1:16 15:24 6/12/1977 Old Faithful 16:31 0:55 3:50 16:21 6/12/1977 Old Faithful 17:48 1:17 2:00 17:41 6/12/1977 Old Faithful 18:34 0:46 4:01 18:38 6/12/1977 Old Faithful 19:58 1:24 1:53 19:46 6/12/1977 Old Faithful 20:47 0:49 20:48 6/12/1977 Round ~18:50 6/12/1977 Castle 14:50 ie more like 1449 6/12/1977 Grand 8:40 2b 6/12/1977 Grand 16:10 2b 6/12/1977 Artemisia 8:39 I=12h18m 6/12/1977 Beehive's Indicator 9:37 ie 6/12/1977 Beehive's Indicator 12:38 D=20m04 6/12/1977 Beehive's Indicator 21:20 6/12/1977 Aurum 10:05 6/12/1977 Riverside ~12:38 6/12/1977 Riverside 18:20 6/12/1977 Great Fountain 13:20 VR 6/12/1977 Great Fountain 22:08 ie 6/12/1977 Spiteful 13:30 VR 6/13/1977 Old Faithful 7:37 3:25 6/13/1977 Old Faithful 8:47 1:10 3:25 8:47 6/13/1977 Old Faithful 9:56 1:09 2:18 9:57 6/13/1977 Old Faithful 10:49 0:53 4:15 10:51 6/13/1977 Old Faithful 12:02 1:13 4:07 12:02 6/13/1977 Old Faithful 13:18 1:16 3:40 13:14 6/13/1977 Old Faithful 14:35 1:17 1:55 14:28 6/13/1977 Old Faithful 15:23 0:48 ~2:30 15:25 6/13/1977 Old Faithful 16:49 1:26 2:02 16:18 6/13/1977 Old Faithful 17:35 0:46 4:42 17:39 6/13/1977 Old Faithful 18:52 1:17 2:02 18:51 6/13/1977 Old Faithful 19:55 1:03 Long 19:42 6/13/1977 Old Faithful 21:13 1:18 3:37 6/13/1977 Old Faithful 22:25 1:12 Long 6/13/1977 Cliff 12:30 ie 6/13/1977 Pink Cone 17:00 6/13/1977 Rocket 12:33 6/13/1977 Beehive 11:28 6/13/1977 Grand 0:04 ie 3b 6/13/1977 Grand 8:20 2b; 27min Turban 6/13/1977 Grand 15:46 "4b;B1=8m40,P1=28;B2=42,P2=55;B3=30,P3=66;D=12m55" 6/13/1977 Fountain 11:10 ie seen from Pocket Basin 6/13/1977 Castle 0:08 6/13/1977 Castle 9:40 6/13/1977 Castle 18:30 ie 6/13/1977 Riverside 0:06 6/13/1977 Riverside 12:10 D=21m04;Back Ind 1152 6/13/1977 Riverside 17:56 VR 6/13/1977 Great Fountain 8:31 no pause;75min overflow 6/13/1977 Great Fountain 18:28 6/13/1977 Round 8:01 6/13/1977 Kaleidoscope 11:32 6/13/1977 Beehive's Indicator 7:36 ie 6/13/1977 Beehive's Indicator 21:00 ie D> or =30m 6/13/1977 Artemisia 19:50 6/13/1977 Atomizer 19:35 major; 6/12? 6/14/1977 Old Faithful 7:44 3:47 6/14/1977 Old Faithful 9:04 1:20 4:01 8:50 6/14/1977 Old Faithful 10:22 1:18 2:16 9:58 6/14/1977 Old Faithful 11:09 0:47 ~4 11:14 6/14/1977 Old Faithful 12:42 1:33 3:44 170' ++ 12:21 6/14/1977 Old Faithful 13:52 1:10 3:30 13:52 6/14/1977 Old Faithful 15:03 1:11 4:14 15:02 6/14/1977 Old Faithful 16:28 1:25 1:56 16:16 6/14/1977 Old Faithful 17:13 0:45 4:32 17:18 6/14/1977 Old Faithful 18:42 1:29 3:15 18:28 6/14/1977 Old Faithful 19:51 1:09 1:56 19:47 6/14/1977 Old Faithful 20:45 0:54 ~4 1/2 20:41 6/14/1977 Old Faithful 22:00 1:15 22:00 6/14/1977 Lion 14:22 6/14/1977 Lion 20:42 6/14/1977 Depression 11:42 6/14/1977 Rift ~05:00 VR & runoff 6/14/1977 Castle 12:37 I 12:49ie 6/14/1977 Castle 21:59 6/14/1977 Grand 8:32 3b 6/14/1977 Grand 15:36 I=7h04m 6/14/1977 Great Fountain 12:16 6/14/1977 Beehive 11:31 duration=4:10 6/14/1977 Beehive's Indicator 7:45 ie 6/14/1977 Beehive's Indicator 21:45 ie 6/14/1977 Aurum 22:04 D=17s 6/14/1977 Round 22:07 6/15/1977 Old Faithful 9:13 2:25 6/15/1977 Old Faithful 10:02 0:49 4:18 10:06 6/15/1977 Old Faithful 11:14 1:12 2:50 11:28 6/15/1977 Old Faithful 12:25 1:11 4:14 12:14 6/15/1977 Old Faithful 13:39 1:14 3:41 13:38 6/15/1977 Old Faithful 14:58 1:19 1:55 14:49 6/15/1977 Old Faithful 15:42:00 0:44 4:10 15:48 6/15/1977 Old Faithful 17:01 1:19 2:04 16:54 6/15/1977 Old Faithful 17:53 0:52 4:24 17:51 6/15/1977 Old Faithful 19:13 1:20 4:00 19:07 6/15/1977 Old Faithful 20:20 1:07 4:01 20:25 6/15/1977 Old Faithful 21:34 1:14 6/15/1977 Artemisia 4:52 6/15/1977 Castle 7:10 ie 6/15/1977 Castle 16:54 6/15/1977 Grand 0:27 3b 6/15/1977 Grand 8:17 5b 6/15/1977 Grand 16:26 3b 6/15/1977 Riverside 10:55 ie 6/15/1977 Riverside 16:56 6/15/1977 Riverside 22:35 6/15/1977 Great Fountain 7:53 62m overflow;6m04 pause 6/15/1977 Great Fountain 16:23 6/15/1977 Beehive's Indicator 8:38 6/15/1977 Beehive's Indicator 11:50 ie 6/15/1977 Beehive's Indicator 14:39 ie 6/15/1977 Depression 20:14 6/15/1977 Lion 1:03 6/15/1977 Lion 14:29 6/15/1977 Lion 20:16 6/15/1977 Oblong 14:37 ie 6/16/1977 Old Faithful 6:35 6/16/1977 Old Faithful 8:03 1:28 2:03 6/16/1977 Old Faithful 8:51 0:48 4:27 8:53 6/16/1977 Old Faithful 10:09 1:18 3:48 10:06 6/16/1977 Old Faithful 11:28 1:19 2:03 11:19 6/16/1977 Old Faithful 12:13 0:45 3:29 12:18 6/16/1977 Old Faithful 13:28 1:15 ~3:15 13:23 6/16/1977 Old Faithful 14:35 1:07 2:00 14:33 6/16/1977 Old Faithful 15:34 0:59 4:40 15:25 6/16/1977 Old Faithful 16:43 1:09 3:34 16:50 6/16/1977 Old Faithful 18:01 1:18 4:08 17:53 6/16/1977 Old Faithful 19:17 1:16 3:50 19:14 6/16/1977 Penta ~17:00 >24min 6/16/1977 Aurum 12:56 5-10' eruption 6/16/1977 Castle 11:25 6/16/1977 Castle 20:55 6/16/1977 Grand 0:36 6/16/1977 Grand 7:48 3b 6/16/1977 Grand 15:38 6/16/1977 Grand 23:31 3b 6/16/1977 Riverside 10:46 ov>88min;B Ind=38min 6/16/1977 Riverside 16:35 6/16/1977 Great Fountain 9:42 6/16/1977 Great Fountain 20:05 6/17/1977 Old Faithful 8:24 4:05 6/17/1977 Old Faithful 9:38 1:14 2:21 9:36 6/17/1977 Old Faithful 10:25 0:47 2:51 10:32 6/17/1977 Old Faithful 11:40 1:15 2:41 11:22 6/17/1977 Old Faithful 12:34 0:54 4:21 12:35 6/17/1977 Old Faithful 13:48 1:14 4:29 13:48 6/17/1977 Old Faithful 15:06 1:18 4:11 15:03 6/17/1977 Old Faithful 16:10 1:04 4:21 16:19 6/17/1977 Old Faithful 17:25 1:15 3:23 17:23 6/17/1977 Old Faithful 18:30 1:05 3:15 18:35 6/17/1977 Old Faithful 19:52 1:22 1:47 19:35 6/17/1977 Old Faithful 20:40 0:48 3:56 20:40 6/17/1977 Old Faithful 21:55 1:15 3:45 21:53 6/17/1977 Sawmill 19:40 6/17/1977 Grand 7:15 3burst 6/17/1977 Grand 14:47 "144550;B1=8m04,P1=35;B2=112,P2=50;B3=41;D=12m04" 6/17/1977 Grand 22:27 3b 6/17/1977 Castle 9:15 6/17/1977 Castle 17:52 ie 6/17/1977 Riverside 10:56 B.Ind=37m 6/17/1977 Riverside 17:10 B.Ind=36min 6/17/1977 Depression 14:35 6/17/1977 Great Fountain 16:25:00 4 1/2 m pause;65min overflow 6/17/1977 Aurum 17:23not typo 6/17/1977 Aurum 17:37not typo 6/17/1977 Artemisia 10:55 6/17/1977 Dome 11:04 7min play 6/17/1977 Dome 12:00 1' continuous stream dur unknown 6/18/1977 Old Faithful 7:25 ? 6/18/1977 Old Faithful 8:42 1:17 3:37 08:35? 6/18/1977 Old Faithful 9:50 1:08 4:15 9:52 6/18/1977 Old Faithful 11:18 1:28 2:51 11:03 6/18/1977 Old Faithful 12:01 0:43 3:49 12:16 6/18/1977 Old Faithful 13:24 1:23 1:50 13:12 6/18/1977 Old Faithful 14:08 0:44 3:57 14:19 6/18/1977 Old Faithful 15:30 1:22 2:17 15:20 6/18/1977 Old Faithful 16:21 0:51 4:29 16:25 6/18/1977 Old Faithful 17:35 1:14 3:38 17:36 6/18/1977 Old Faithful 18:43 1:08 3:51 18:45 6/18/1977 Old Faithful 19:47 1:04 3:30 19:53 6/18/1977 Old Faithful 20:59 1:12 3:44 20:57 6/18/1977 Beehive 20:08 6/18/1977 Atomizer 16:00 25' high 6/18/1977 Castle 12:19 12:45ie 6/18/1977 Castle 21:30 ie 6/18/1977 Grand 13:52 6/18/1977 Grand 21:38 2b;1st 10m37sP1=1m;B21m10 6/18/1977 Riverside 10:35 VR 6/18/1977 Riverside 16:15 6/18/1977 Great Fountain 13:10 6/18/1977 Great Fountain 22:57 6/18/1977 Beehive's Indicator 9:50 6/18/1977 Depression 11:34 6/18/1977 Depression 17:13 6/18/1977 Oblong 13:12 6/18/1977 Oblong 21:50 6/18/1977 Fountain 8:20 ie Jet with it;24x in 75m;(20m minor play to NW)14xin40m 6/19/1977 Old Faithful 8:01 ~2:05 6/19/1977 Old Faithful 8:47 0:46 4:01 6/19/1977 Old Faithful 10:00 1:13 2:15 9:59 6/19/1977 Old Faithful 10:54 0:54 4:25 10:52 6/19/1977 Old Faithful 12:08 1:14 3:45 12:09 6/19/1977 Old Faithful 13:24 1:16 3:41 13:18 6/19/1977 Old Faithful 14:33 1:09 2:07 14:34 6/19/1977 Old Faithful 15:23 0:50 4:44 15:23 6/19/1977 Old Faithful 16:41 1:18 ~3:45 16:39 6/19/1977 Old Faithful 17:54 1:13 3:52 17:51 6/19/1977 Old Faithful 19:06 1:12 1:57 19:04 6/19/1977 Old Faithful 19:59 0:53 4:07 19:56 6/19/1977 Oblong 7:22 6/19/1977 Spiteful 16:14 6/19/1977 Castle 6:45 ie 6/19/1977 Castle 15:25 6/19/1977 Grand 13:15 ie 6/19/1977 Grand 21:32 4b 6/19/1977 Riverside 9:42 6/19/1977 Riverside 15:31 D=15m 6/19/1977 Riverside 21:10 6/19/1977 Great Fountain 7:15 ie 6/19/1977 Great Fountain 14:00 ie 6/19/1977 Great Fountain 22:39 VR 6/19/1977 Lion 6:52 6/19/1977 Lion 9:17 6/19/1977 Lion 11:53 6/19/1977 Lion 12:58 6/19/1977 Lion 14:28 6/19/1977 Lion 15:58 6/19/1977 Depression 13:03 6/19/1977 Beehive's Indicator 20:34 ie 6/19/1977 Vault 13:54 ie 6/20/1977 Old Faithful 8:16 4:17 6/20/1977 Old Faithful 9:30 1:14 3:50 9:29 6/20/1977 Old Faithful 10:44 1:14 4:12 10:42 6/20/1977 Old Faithful 11:54 1:10 4:05 11:56 6/20/1977 Old Faithful 13:08 1:14 3:50 13:06 6/20/1977 Old Faithful 14:12 1:04 4:13 14:20 6/20/1977 Old Faithful 15:28 1:16 3:42 15:25 6/20/1977 Old Faithful 16:42 1:14 2:21 16:38 6/20/1977 Old Faithful 17:47 1:05 4:27 17:34 6/20/1977 Old Faithful 19:08 1:21 3:43 19:02 6/20/1977 Old Faithful 20:13 1:05 4:17 20:18 6/20/1977 Castle 9:30 1010 turned to steam 6/20/1977 Castle 19:15 6/20/1977 Grand 12:36 6/20/1977 Grand 20:06 ie 6/20/1977 Riverside 9:12 6/20/1977 Riverside 15:35 6/20/1977 Great Fountain 16:36 ie 6/20/1977 Kaleidoscope active p.m. 6/20/1977 Fountain 19:32 ie 6/20/1977 Depression 20:42 6/21/1977 Old Faithful 7:51 3:46 6/21/1977 Old Faithful 9:01 1:10 3:13 9:02 6/21/1977 Old Faithful 10:12 1:11 2:45 10:06 6/21/1977 Old Faithful 11:01 0:49 3:15 11:07 6/21/1977 Old Faithful 12:29 1:28 3:08 12:06 6/21/1977 Old Faithful 13:22 0:53 3:55 13:21 6/21/1977 Old Faithful 14:31 1:09 3:48 14:34 6/21/1977 Old Faithful 15:45 1:14 1:51 15:41 6/21/1977 Old Faithful 16:34 0:49 4:42 16:33 6/21/1977 Old Faithful 17:55 1:21 1:49 17:50 6/21/1977 Old Faithful 18:47 0:52 4:53 18:44 6/21/1977 Old Faithful 20:10 1:23 3:46 20:03 6/21/1977 Old Faithful 21:21 1:11 21:20 6/21/1977 Grand 12:31 "B1=11m03,P1=33;B2=2m30,D=14m06" 6/21/1977 Grand 21:01 "B1=8m50,P1=1m31;B2=1m30;D=12m33" 6/21/1977 Beehive 20:37 6/21/1977 Oblong 9:58 ie 6/21/1977 "Grotto Pool,Grotto,&Rocket" 9:45 6/21/1977 Castle 13:50 ie 6/21/1977 Castle 22:42 6/21/1977 Riverside 9:32 VR 6/21/1977 Riverside 15:20 6/21/1977 Riverside 21:42 6/21/1977 Great Fountain 21:05 end at end of eruption 6/21/1977 Artemisia 11:20 to 11:33 6/21/1977 Mortar & Fan 12:30 minor eruption 6/21/1977 Lone Star 10:30 6/22/1977 Old Faithful 8:38 1:50 6/22/1977 Old Faithful 9:30 0:52 3:52 9:28 6/22/1977 Old Faithful 10:54 1:24 1:34 10:42 6/22/1977 Old Faithful 11:47 0:53 5:06 11:39 6/22/1977 Old Faithful 13:10 1:23 4:08 12:58 6/22/1977 Old Faithful 14:20 1:10 2:30 14:23 6/22/1977 Old Faithful 15:27 1:07 4:18 15:18 6/22/1977 Old Faithful 16:48 1:21 4:05 16:40 6/22/1977 Old Faithful 17:58 1:10 3:42 17:58 6/22/1977 Old Faithful 19:09 1:11 3:30 19:08 6/22/1977 Old Faithful 20:35 1:26 20:19 6/22/1977 Grand 12:45 "B1=11m25,P1=50;B2=47;D=13m02" 6/22/1977 Grand 21:02 "B1=8m10,P1=25;B2=3m45,P2=30;B3=35;D=13m25" 6/22/1977 Castle 8:05 6/22/1977 Castle 17:11 6/22/1977 Riverside 9:53 6/22/1977 Riverside 15:35 6/22/1977 Riverside 21:18 6/22/1977 Great Fountain 15:25 6/22/1977 Oblong 10:21 6/23/1977 Old Faithful 9:03 3:06 6/23/1977 Old Faithful 10:08 1:05 4:15 10:04 6/23/1977 Old Faithful 11:23 1:15 3:21 11:21 6/23/1977 Old Faithful 12:42 1:19 3:48 12:28 6/23/1977 Old Faithful 13:52 1:10 1:50 13:52 6/23/1977 Old Faithful 14:53 1:01 4:24 14:42 6/23/1977 Old Faithful 16:12 1:19 1:51 16:09 6/23/1977 Old Faithful 16:54 0:42 4:06 17:00 6/23/1977 Old Faithful 18:12 1:18 3:11 18:04 6/23/1977 Old Faithful 19:18 1:06 4:42 19:17 6/23/1977 Grand 13:03 "B1=8m12,P1=50;B2=1m28,P2=45;B3=95;D=13m30" 6/23/1977 Grand 20:52 "B1=9m51,P1=41;B2=38,P2=70;B3=30;D=12m50" 6/23/1977 Castle 11:40 6/23/1977 Castle 20:53 6/23/1977 Riverside 8:49 6/23/1977 Riverside 14:34 6/23/1977 Riverside 20:10 6/23/1977 Great Fountain 8:58 6/23/1977 Great Fountain 17:41 Herb saw it;it is correct 6/23/1977 Beehive's Indicator 13:52 6/23/1977 Oblong 10:04 6/24/1977 Old Faithful 7:50 3:00? 6/24/1977 Old Faithful 8:51 1:01 ~3:00 8:55 6/24/1977 Old Faithful 10:04 1:13 1:40 9:50 6/24/1977 Old Faithful 10:54 0:50 4:06 10:50 6/24/1977 Old Faithful 12:21 1:27 3:57 12:06 6/24/1977 Old Faithful 13:33 1:12 4:23 13:32 6/24/1977 Old Faithful 14:48 1:15 4:03 14:45 6/24/1977 Old Faithful 15:58 1:10 2:00 16:00 6/24/1977 Old Faithful 16:49 0:51 4:05 16:48 6/24/1977 Old Faithful 18:13 1:24 3:46 18:01 6/24/1977 Old Faithful 19:31 1:18 4:00 19:24 6/24/1977 Grand 12:52 "B1=8m59,P1=46;B2=42,P2=62;B3=41;D=12m10" 6/24/1977 Grand 21:54 "B1=7m30,P1=60;B2=1m27,P2=39;B3=43;D=11m59" 6/24/1977 Round 20:19 6/24/1977 Beehive's Indicator 18:05 ie 6/24/1977 Penta 18:08 to 19:14 6/24/1977 Rift 18:12 ie to 19:10 6/24/1977 Little Squirt 17:50 ie 6/24/1977 Aurum 10:11 6/24/1977 Riverside 8:25 6/24/1977 Riverside 19:58 6/24/1977 Castle 5:58 6/24/1977 Castle 15:04 6/24/1977 Spasmodic 10:38 6/24/1977 Great Fountain 11:44 6/24/1977 Great Fountain 20:56 6/24/1977 Fan & Mortar 16:51 VR Lasted 10 min; minor? 6/25/1977 Old Faithful 6:00 VR 6/25/1977 Old Faithful 7:19 VR 1:19 4:30VR 6/25/1977 Old Faithful 8:35 1:16 3:24 08:35~ 6/25/1977 Old Faithful 9:40 1:05 3:33 9:45 6/25/1977 Old Faithful 11:02 1:22 3:30 10:50 6/25/1977 Old Faithful 12:12 1:10 4:07 12:12 6/25/1977 Old Faithful 13:27 1:15 3:30 13:24 6/25/1977 Old Faithful 14:38 1:11 4:00 14:37 6/25/1977 Old Faithful 15:52 1:14 3:48 15:50 6/25/1977 Old Faithful 17:01 1:09 1:54 17:02 6/25/1977 Old Faithful 17:46 0:45 4:12 17:48 6/25/1977 Old Faithful 19:06 1:20 3:04 18:59 6/25/1977 Old Faithful 20:20 1:14 4:26 20:06 6/25/1977 Old Faithful 21:45 1:25 4:26 21:33 6/25/1977 Grand 12:57 6/25/1977 Grand 19:50 6/25/1977 Riverside 7:55 6/25/1977 Riverside 14:21 6/25/1977 Riverside 20:03 6/25/1977 Great Fountain 6:56 6/25/1977 Great Fountain 18:05 1805 boil; 1810 full eruption 6/25/1977 Castle 0:10 6/25/1977 Castle 8:58 6/25/1977 Castle 18:15 18:15 6/25/1977 Oblong 8:20 6/25/1977 Beehive 11:34 6/25/1977 Beehive's Indicator 8:57 6/25/1977 Beehive's Indicator 17:00 6/25/1977 Beehive's Indicator 19:27 6/25/1977 Beehive's Indicator 21:45 6/25/1977 Lion 10:49 6/25/1977 Lion 2:00not typo 6/25/1977 Lion 15:17 6/25/1977 Lion 17:26 6/25/1977 Fountain 16:00 ie 6/25/1977 Grand 7:45pm not typo (see other time also) 6/25/1977 Lone Star off at 16:57 6/26/1977 Old Faithful 8:19 3:30 6/26/1977 Old Faithful 9:40 1:21 4:08 9:29 6/26/1977 Old Faithful 10:50 1:10 2:30 10:53 6/26/1977 Old Faithful 11:42 0:52 4:19 11:45 6/26/1977 Old Faithful 13:09 1:27 3:31 12:55 6/26/1977 Old Faithful 14:12 1:03 3:55 14:19 6/26/1977 Old Faithful 15:35 1:23 3:58 15:24 6/26/1977 Old Faithful 16:46 1:11 4:10 16:47 6/26/1977 Old Faithful 18:02 1:16 3:41 18:02 6/26/1977 Old Faithful 19:07 1:05 4:36 19:12 6/26/1977 Old Faithful 20:28 1:21 2:01 20:22 6/26/1977 Old Faithful 21:15 0:47 21:18 6/26/1977 Riverside 7:31 6/26/1977 Depression 12:56 6/26/1977 Oblong 7:36 6/26/1977 Oblong 16:12 (7m50) 6/26/1977 Oblong 23:53 6/26/1977 Grand 9:44 2bursts 6/26/1977 Grand 17:20 3bursts 6/26/1977 Vault 10:24end 6/26/1977 Vault 11:03 "D=2'16""" 6/26/1977 Castle 12:40 6/26/1977 Castle 22:01 6/26/1977 Plume no time given 3 to 4 bursts 6/26/1977 Artemisia 14:46 6/26/1977 Great Fountain 14:27 6/27/1977 Old Faithful 7:25 6/27/1977 Old Faithful 8:44 1:19 2 1/2 8:37 6/27/1977 Old Faithful 9:51 1:07 3:45 9:39 6/27/1977 Old Faithful 10:59 1:08 3 1/2 11:01 6/27/1977 Old Faithful 12:07 1:08 3:11 12:09 6/27/1977 Old Faithful 13:18 1:11 3:51 1:12not typo 6/27/1977 Old Faithful 14:37 1:19 3:52 14:30 6/27/1977 Old Faithful 15:53 1:16 2:01 15:48 6/27/1977 Old Faithful 16:40 0:47 4:23 16:43 6/27/1977 Old Faithful 18:04 1:24 2:33 17:53 6/27/1977 Old Faithful 18:55 0:51 4:16 19:00 6/27/1977 Old Faithful 20:16 1:21 3:43 6/27/1977 Old Faithful 21:26 1:10 3:51 21:20 (6m33PP) 21:26 6/27/1977 Old Faithful 22:35 1:09 4:12 22:36 6/27/1977 Castle 7:02 6/27/1977 Castle 16:23 6/27/1977 Great Fountain ~07:31 6/27/1977 Great Fountain 16:13 6/27/1977 Grand 0:35 6/27/1977 Grand 8:42 6/27/1977 Grand 15:55 "1557;B1=10m33,P1=58;B2=56" 6/27/1977 Grand 23:20 (H. Warren) 6/27/1977 Riverside 7:05 6/27/1977 Riverside 13:20 "ovfl 11:38;D=20'50""" 6/27/1977 Riverside 19:06 6/27/1977 Oblong 8:25 6/27/1977 Aurum 14:39 6/27/1977 Fan & Mortar ~17:15 VR 6/27/1977 Beehive ~11:10 Herb Warren 6/27/1977 Beehive 22:47 "Suzanne Herel,C. Herd" 6/28/1977 Old Faithful 6:29 ~3 3/4 6/28/1977 Old Faithful 7:39 1:10 3:48 7:39 6/28/1977 Old Faithful 8:47 1:08 3:00 8:50 6/28/1977 Old Faithful 10:05 1:18 1:56 9:47 6/28/1977 Old Faithful 10:52 0:47 4:17 10:55 6/28/1977 Old Faithful 12:10 1:18 3:13 12:05 6/28/1977 Old Faithful 13:20 1:10 3:27 13:15 6/28/1977 Old Faithful 14:45 1:25 1:46 14:30 6/28/1977 Old Faithful 15:34 0:49 4:30 15:32 6/28/1977 Old Faithful 17:03 1:29 4:17 16:49 6/28/1977 Old Faithful 18:18:00 1:15 3:58 18:16 6/28/1977 Old Faithful 19:31 1:13 4:00 19:30 6/28/1977 Grand 6:38 (3b) 6/28/1977 Grand 14:23 6/28/1977 Grand 22:10 6/28/1977 Riverside 7:14 6/28/1977 Riverside 13:32 6/28/1977 Riverside 19:25 6/28/1977 Castle 10:38 6/28/1977 Castle 19:51 6/28/1977 Beehive's Indicator 7:52 ie 6/28/1977 Great Fountain 11:10 6/28/1977 Great Fountain 21:30 6/28/1977 Round 7:50 6/28/1977 Artemisia 6:56 ie 6/28/1977 Grotto Fountain 7:18 to 07:28 6/28/1977 S. Grotto Fountain 7:20 6/28/1977 Grotto-Rocket 7:23 6/28/1977 Depression 21:37 6/28/1977 Fountain 19:45 ie 6/29/1977 Old Faithful 6:02 Long 6/29/1977 Old Faithful 7:10 1:08 Long 7:12 6/29/1977 Old Faithful 8:29 1:19 3:30 8:22 6/29/1977 Old Faithful 9:49 1:20 4:00 9:39 6/29/1977 Old Faithful 11:07 1:18 2:00 11:02 6/29/1977 Old Faithful 12:04 0:57 4:47 11:57 6/29/1977 Old Faithful 13:20 1:16 4:00 13:19 6/29/1977 Old Faithful 14:38 1:18 1:46 14:32 6/29/1977 Old Faithful 15:17 0:39 4:15 15:25 6/29/1977 Old Faithful 16:33 1:16 3:09 16:30 6/29/1977 Old Faithful 17:44 1:11 4:05 17:35 6/29/1977 Old Faithful 18:57 1:13 4:16 18:56 6/29/1977 Old Faithful 20:17 1:20 Short 20:10 6/29/1977 Old Faithful 21:05 0:48 4:31 21:07 6/29/1977 Castle 4:43 6/29/1977 Castle 14:02 6/29/1977 Castle 23:30 6/29/1977 Artemisia 15:18 ie 4m preboil;D=22m22 6/29/1977 Grand 6:49 6/29/1977 Grand 14:30 6/29/1977 Grand 22:02 6/29/1977 Riverside 7:14 6/29/1977 Riverside 12:56 6/29/1977 Riverside 19:18 6/29/1977 Great Fountain 6:15 6/29/1977 Great Fountain 15:52 6/29/1977 Oblong 6:33 6/29/1977 Oblong 14:35 6/29/1977 Depression 7:35 6/29/1977 Round 12:54 6/29/1977 Beehive's Indicator 5:31 ie 6/29/1977 Beehive's Indicator 7:27 ie 6/29/1977 Beehive's Indicator 21:39 ie 6/29/1977 Lion 15:21 6/30/1977 Old Faithful 7:52 3:30 6/30/1977 Old Faithful 9:04 1:12 1:58 9:02 6/30/1977 Old Faithful 9:57 0:53 2:00? 9:54 6/30/1977 Old Faithful 11:14 1:17 1:56 10:50 6/30/1977 Old Faithful 12:02 0:48 4:00 12:04 6/30/1977 Old Faithful 13:26 1:24 1:56 13:14 6/30/1977 Old Faithful 14:22 0:56 3:41 14:16 6/30/1977 Old Faithful 15:43 1:21 3:50 15:32 6/30/1977 Old Faithful 16:58 1:15 3:33 16:53 6/30/1977 Old Faithful 18:15 1:17 3:34 18:08 6/30/1977 Old Faithful 19:25 1:10 3:45 19:26 6/30/1977 Old Faithful 20:36 1:11 3:54 20:35 6/30/1977 Grand 6:15 (3bursts) 6/30/1977 Grand 13:22 (4bursts) 6/30/1977 Grand 20:54 (4bursts) 6/30/1977 Riverside 7:36 6/30/1977 Riverside 13:19 6/30/1977 Castle 8:40 6/30/1977 Castle 18:02 6/30/1977 Great Fountain 10:05 6/30/1977 Great Fountain 18:28 6/30/1977 Oblong 9:15 6/30/1977 Beehive 21:43 ie 6/30/1977 North Goggles 11:56 7/1/1977 Old Faithful 8:13 4:45 7/1/1977 Old Faithful 9:33 1:20 2:02 9:30 7/1/1977 Old Faithful 10:28 0:55 4:38 10:23 7/1/1977 Old Faithful 11:50 1:22 2:38 11:43 7/1/1977 Old Faithful 12:45 0:55 4:27 12:45 7/1/1977 Old Faithful 13:58 1:13 3:30 14:00 7/1/1977 Old Faithful 15:20 1:22 3:42 15:10 7/1/1977 Old Faithful 16:33 1:13 4:23 16:30 7/1/1977 Old Faithful 17:52 1:19 3:53 17:48 7/1/1977 Old Faithful 19:08 1:16 3:50 19:03 7/1/1977 Old Faithful 20:25 1:17 4:36 20:18 7/1/1977 Grand 12:32 ie 7/1/1977 Grand 20:25 7/1/1977 Castle 12:14 7/1/1977 Castle 22:09 7/1/1977 Riverside 7:12 7/1/1977 Riverside 13:29 7/1/1977 Riverside 19:47 7/1/1977 Riverside 23:30 7/1/1977 Beehive's Indicator 8:39 7/1/1977 Great Fountain 13:33 1333boil; 1338 eruption 7/1/1977 Great Fountain 23:28 6m38 pause 7/1/1977 Grotto Fountain 13:13 7/1/1977 Rocket 13:27 7/1/1977 Grotto 13:16 7/1/1977 Oblong 23:04 ie 7/2/1977 Old Faithful 8:09 ~4:00 7/2/1977 Old Faithful 9:28 1:19 2:11 9:21 7/2/1977 Old Faithful 10:16 0:48 3:53 10:19 7/2/1977 Old Faithful 11:39 1:23 1:43 11:28 7/2/1977 Old Faithful 12:27 0:48 4:36 12:26 7/2/1977 Old Faithful 13:42 1:15 3:50 13:42 7/2/1977 Old Faithful 14:51 1:09 4:00 14:53 7/2/1977 Old Faithful 16:10 1:19 4:53 16:03 7/2/1977 Old Faithful 17:22 1:12 3:50 17:26 7/2/1977 Old Faithful 18:37 1:15 1:57 18:32 7/2/1977 Old Faithful 19:24 0:47 4:29 19:27 7/2/1977 Riverside 7:20 7/2/1977 Riverside 13:05 7/2/1977 Riverside 18:45 7/2/1977 Castle 7:10 ie 7/2/1977 Castle 16:18 possible minor 7/2/1977 Castle 17:15 erratic bursts to 90' for 5min 7/2/1977 Great Fountain 9:51 7/2/1977 Great Fountain 21:15 77min ovfl;6m52 pause 7/2/1977 Lion 10:16 7/2/1977 Beehive 15:56 7/2/1977 Round 17:10 7/3/1977 Old Faithful 7:30 7/3/1977 Old Faithful 8:47 1:17 3:47 7/3/1977 Old Faithful 10:00 1:13 4:37 9:57 7/3/1977 Old Faithful 11:09 1:09 4:00 11:15 7/3/1977 Old Faithful 12:23 1:14 3:56 12:21 7/3/1977 Old Faithful 13:44 1:21 3:59 13:35 7/3/1977 Old Faithful 15:01 1:17 3:49 14:56 7/3/1977 Old Faithful 16:17 1:16 3:06 16:11 7/3/1977 Old Faithful 17:23 1:06 4:40 17:17 7/3/1977 Old Faithful 18:40 1:17 3:54 18:39 7/3/1977 Old Faithful 19:56 1:16 4:00 19:50 7/3/1977 Old Faithful 21:03 1:07 4:24 21:08 7/3/1977 Old Faithful 22:24 1:21 Long 22:18 7/3/1977 Old Faithful 23:29 1:05 4:29 23:34 7/3/1977 Old Faithful 00:45not typo 1:16 3:40 626 PP 7/3/1977 Old Faithful 01:54not typo 1:09 4:01 802PP 7/3/1977 Riverside 11:51 7/3/1977 Riverside 18:00 "D=20'30""" 7/3/1977 Castle 12:12 7/3/1977 Castle 21:22 VR 22:00ie 7/3/1977 Grand 12:15 ie 3 bursts 7/3/1977 Grand 20:17 3b 7/3/1977 Great Fountain 8:08 8:08big boil;8:13 start 7/3/1977 Great Fountain 16:53 I=8h40 7/3/1977 Artemisia 19:03 (19:56:12?)not typo 7/3/1977 Fan & Mortar 17:30 VR 7/3/1977 Lion 7:56 7/3/1977 Lion 13:53 7/3/1977 Round 9:14 7/3/1977 Penta 12:34 ie 7/4/1977 Old Faithful 7:50 7/4/1977 Old Faithful 9:02 1:12 3:54 8:57 7/4/1977 Old Faithful 10:16 1:14 3:43 10:14 7/4/1977 Old Faithful 11:32 1:16 3:20 11:26 7/4/1977 Old Faithful 12:49 1:17 4:25 12:37 7/4/1977 Old Faithful 13:55 1:06 4:32 14:04 7/4/1977 Old Faithful 15:17 1:22 2:02 15:10 7/4/1977 Old Faithful 16:07 0:50 4:33 16:07 7/4/1977 Old Faithful 17:28 1:21 1:50 17:23 7/4/1977 Old Faithful 18:22 0:54 4:27 18:15 7/4/1977 Old Faithful 19:41 1:19 2:25 19:37 7/4/1977 Old Faithful 20:35 0:54 3:57 20:35 7/4/1977 Riverside 11:35 VR D=20:57 7/4/1977 Riverside 17:20 D=21:14 7/4/1977 Castle ~06:40? 7/4/1977 Castle 15:36 ie 7/4/1977 Grand 10:38 7/4/1977 Grand 18:03 (3b);D=12m54;after bursts till 1910 7/4/1977 Great Fountain 13:06 (5m48 pause) 7/4/1977 Dome 12:55 ie 7/4/1977 Dome 15:17 7/4/1977 Dome 15:35 7/4/1977 Cliff 10:41 played to 40' 7/4/1977 Rocket 15:53 D< 1 min 7/4/1977 Beehive 21:50 7/5/1977 Old Faithful 7:30 Short 7/5/1977 Old Faithful 8:25 0:55 ~3:31 8:40 7/5/1977 Old Faithful 9:48 1:23 ~2:30 9:35 7/5/1977 Old Faithful 10:35 0:47 4:15 10:43 7/5/1977 Old Faithful 11:50 1:15 3:06 11:48 7/5/1977 Old Faithful 12:57 1:07 4:11 12:54 7/5/1977 Old Faithful 14:06 1:09 3:47 14:10 7/5/1977 Old Faithful 15:25 1:19 2:48 15:16 7/5/1977 Old Faithful 16:31 1:06 3:51 16:21 7/5/1977 Old Faithful 17:42 1:11 3:56 17:42 7/5/1977 Old Faithful 19:03 1:21 1:44 18:53 7/5/1977 Old Faithful 19:52 0:49 ~3:39 19:50 7/5/1977 Old Faithful 21:04 1:12 2:16 21:02 7/5/1977 Old Faithful 22:01 0:57 4:17 21:56 7/5/1977 Old Faithful 23:17 1:16 2:03 23:14 7/5/1977 Old Faithful 00:19not typo 1:02 4:46 7/5/1977 Old Faithful 01:34not typo 1:15 2:25 7/5/1977 Old Faithful 02:23not typo 0:49 4:36 7/5/1977 Great Fountain 8:08 7/5/1977 Castle 9:54 7/5/1977 Castle 18:56 7/5/1977 Grand 10:05 7/5/1977 Grand 18:10 7/5/1977 Riverside 11:10 7/5/1977 Riverside 17:32 7/5/1977 Spiteful 16:11 to 1616; 15'high 7/5/1977 Mortar 16:12 to 1614; 10-12' high 7/5/1977 Mortar & Fan 20:07 60-70 ft. 7/5/1977 Artemisia 15:31:00 for 22 min. 7/6/1977 Old Faithful 8:09:00 3:21 7/6/1977 Old Faithful 9:26:00 1:17 1:36 9:19 7/6/1977 Old Faithful 10:10:00 0:44 4:31 10:11 7/6/1977 Old Faithful 11:22 1:12 4:00 11:26 7/6/1977 Old Faithful 12:40 1:18 3:38 12:34 7/6/1977 Old Faithful 13:49 1:09 3:32 13:50 7/6/1977 Old Faithful 14:55 1:06 1:50 14:59 7/6/1977 Old Faithful 15:55 1:00 4:28 15:43 7/6/1977 Old Faithful 17:16 1:21 3:15 17:10 7/6/1977 Old Faithful 18:29 1:13 4:09 18:21 7/6/1977 Old Faithful 19:55 1:26 4:04 19:41 7/6/1977 Old Faithful 21:00 1:05 4:22 21:07 7/6/1977 Old Faithful 22:13 1:13 1:38 22:13 7/6/1977 Old Faithful 23:02 0:49 4:48 7/6/1977 Old Faithful 00:15not typo 1:13 3:35 53sec 7/6/1977 Old Faithful 01:25not typo 1:10 3:39 5:52 7/6/1977 Oblong 17:12 7/6/1977 Castle 7:15 7/6/1977 Castle 17:13 7/6/1977 Grand 9:40 7/6/1977 Grand 18:36 3b;13m03 7/6/1977 Riverside 11:56:00 D=20m34 7/6/1977 Riverside 17:34 7/6/1977 Great Fountain 14:11 7/6/1977 Great Fountain 22:43 7/6/1977 Beehive's Indicator 15:47 7/6/1977 Beehive's Indicator 21:13:00 to 21:45 7/6/1977 Round 18:11 7/6/1977 Lion 20:00:00 7/6/1977 Artemisia 15:48 dur=16min 7/6/1977 Grotto Fountain 11:20 to 11:36 7/6/1977 Spiteful 11:45:00 to 11:48 7/7/1977 Old Faithful 7:45 ~4:30 7/7/1977 Old Faithful 9:00 1:15 Short 9:00 7/7/1977 Old Faithful 9:59 0:59 4:26 9:50 7/7/1977 Old Faithful 11:20 1:21 4:22 11:14 7/7/1977 Old Faithful 12:35 1:15 4:10 12:34 7/7/1977 Old Faithful 13:53 1:18 2:21 13:48 7/7/1977 Old Faithful 15:04 1:11 1:57 14:48 7/7/1977 Old Faithful 15:57 0:53 4:01 15:54 7/7/1977 Old Faithful 17:24 1:27 3:46 17:09 7/7/1977 Old Faithful 18:40:00 1:16 18:34 7/7/1977 Old Faithful 20:00:00 1:20 4:19 19:35 7/7/1977 Old Faithful 21:11 1:11 2:14 21:13 7/7/1977 Old Faithful 21:58:00 0:47 4:26 22:03 7/7/1977 Old Faithful 23:16 1:18 3:43 23:13 7/7/1977 Great Fountain 6:59 7/7/1977 Great Fountain 15:43 (5min pause) 7/7/1977 Great Fountain 23:45 7/7/1977 Riverside 5:58 7/7/1977 Riverside 17:20 7/7/1977 Beehive's Indicator 9:56 7/7/1977 Grand 10:46 3b;D=13m18 7/7/1977 Grand 19:22 4b 7/7/1977 Spa 18:12:00 minor; 6' 7/7/1977 Castle 14:00:00 minor;D~4min 7/7/1977 Castle 18:22 7/7/1977 Artemisia 14:37 24 min 7/7/1977 Artemisia 14:40not typo to 15:01;main 7/7/1977 Oblong 19:44 7/8/1977 Old Faithful 7:20 ie 7/8/1977 Old Faithful 8:29 1:09 2:03 7/8/1977 Old Faithful 9:35 1:06 4:30 9:19 7/8/1977 Old Faithful 10:52 1:17 3:52 9:25 7/8/1977 Old Faithful 12:06 1:14 3:33 10:50 7/8/1977 Old Faithful 13:14 1:08 3:39 12:03 7/8/1977 Old Faithful 14:30 1:16 3:40 13:16 7/8/1977 Old Faithful 15:49 1:19 4:36 14:24 7/8/1977 Old Faithful 17:08 1:19 2:01 15:40 7/8/1977 Old Faithful 18:01 0:53 3:22 17:05 7/8/1977 Old Faithful 19:32 1:31 3:45 17:58 7/8/1977 Old Faithful 20:40 1:08 3:45 19:11 7/8/1977 Old Faithful 22:00 1:20 3:39 20:42 21:50 7/8/1977 Castle 12:46 7/8/1977 Riverside 6:10 7/8/1977 Riverside 11:53 7/8/1977 Riverside 17:47 ie 7/8/1977 Oblong 5:55 7/8/1977 Oblong 14:00 ie 7/8/1977 Great Fountain 7:15 7/8/1977 Great Fountain 17:14 7/8/1977 Beehive's Indicator 8:17 7/8/1977 Beehive's Indicator 21:25 ie 7/8/1977 Grand 10:56:00 ie 7/8/1977 Grand 18:55 7/8/1977 Artemisia 9:30 ie 7/8/1977 Artemisia 20:19 D=26m26s 7/8/1977 Atomizer 20:22 major; 7m09 7/9/1977 Old Faithful 8:45 1:58 7/9/1977 Old Faithful 9:35 0:50 4:23 9:35 7/9/1977 Old Faithful 10:55 1:20 3:39 10:50 7/9/1977 Old Faithful 12:05 1:10 4:16 12:05 7/9/1977 Old Faithful 13:15 1:10 3:45 13:18 7/9/1977 Old Faithful 14:32 1:17 3:54 14:25 7/9/1977 Old Faithful 15:42 1:10 4:04 15:44 7/9/1977 Old Faithful 17:05:00 1:23 3:54 16:54 7/9/1977 Old Faithful 18:11 1:06 3:50 18:17 7/9/1977 Old Faithful 19:36 1:25 4:09 19:21 7/9/1977 Old Faithful 20:58 1:22 4:00 20:49 7/9/1977 Old Faithful 22:08 1:10 4:18 22:10 7/9/1977 Castle 7:05 7/9/1977 Castle 16:03 7/9/1977 Grand 11:00 7/9/1977 Grand 18:00 7/9/1977 Riverside 11:21 7/9/1977 Riverside 17:36 7/9/1977 Great Fountain 9:27 First Burst over 200'! 7/9/1977 Great Fountain 18:50 VR 7/9/1977 Beehive's Indicator 10:13:00 ie 7/9/1977 Lion 7:10 ie 7/9/1977 Lion 21:02 7/9/1977 Round 22:28 7/9/1977 Atomizer 20:01 "minor, D=31s" 7/9/1977 Artemisia 20:59 D=17m42 7/10/1977 Old Faithful 6:27 7/10/1977 Old Faithful 7:47 1:20 3:21 7/10/1977 Old Faithful 9:02 1:15 4:26 8:57 7/10/1977 Old Faithful 10:10 1:08 2:15 10:17 7/10/1977 Old Faithful 11:06 0:56 4:31 11:02 7/10/1977 Old Faithful 12:25 1:19 1:52Short 12:21 7/10/1977 Old Faithful 13:20:00 0:55 4:18 13:15 7/10/1977 Old Faithful 14:34 1:14 2:03 14:33 7/10/1977 Old Faithful 15:29 0:55 4:37 15:24 7/10/1977 Old Faithful 16:43 1:14 2:01 16:44 7/10/1977 Old Faithful 17:34 0:51 4:35 17:33 7/10/1977 Old Faithful 18:52:00 1:18 1:56 18:49 7/10/1977 Old Faithful 19:44 0:52 3:45 19:42 7/10/1977 Old Faithful 20:57 1:13 3:07 20:54 7/10/1977 Great Fountain 12:15:00 7/10/1977 Great Fountain 21:11:00 "boil 52s,pause 5m03" 7/10/1977 Lion 10:30 7/10/1977 Lion 12:53 7/10/1977 Lion 16:01 7/10/1977 Grand 9:36 7/10/1977 Grand 16:47 2b 7/10/1977 Riverside 11:43 to 12:04 7/10/1977 Riverside 05:40not typo ie 7/10/1977 Riverside 17:33:00 7/10/1977 Castle 10:10:00 VR 7/10/1977 Castle 20:20:00 ie 7/10/1977 Beehive 11:10:00 7/10/1977 Beehive's Indicator 20:23 7/10/1977 Spiteful 8:45 7/10/1977 Spiteful ~16:30 7/10/1977 Artemisia 8:08 ie 7/10/1977 Artemisia ~17:45 ie 7/10/1977 Depression 10:14 ie 7/11/1977 Old Faithful 8:04:00 4:03 7/11/1977 Old Faithful 9:14 1:10:00 2:30Short 9:16 7/11/1977 Old Faithful 10:28:00 1:14:00 1:49 10:08 7/11/1977 Old Faithful 11:15 0:47:00 4:13 11:18 7/11/1977 Old Faithful 12:30 1:15:00 4:34 12:20 7/11/1977 Old Faithful 13:47 1:17:00 4:00 13:45 7/11/1977 Old Faithful 14:58 1:11:00 3:55 14:59 7/11/1977 Old Faithful 16:16 1:18:00 4:25 16:10 7/11/1977 Old Faithful 17:34 1:18:00 2:00 17:30 7/11/1977 Old Faithful 18:25 0:51:00 4:39 18:24 7/11/1977 Old Faithful 19:42 1:17:00 3:51 19:40 7/11/1977 Old Faithful 20:56 1:14:00 4:04 20:52 7/11/1977 Old Faithful 22:05:00 1:09:00 2:05 22:08 7/11/1977 Old Faithful 23:14 1:09:00 Long >or = 20min 7/11/1977 Castle 14:18 7/11/1977 Grand 8:41 3B 7/11/1977 Grand 16:10 7/11/1977 Riverside 11:35 7/11/1977 Great Fountain 7:13 ovfl 63min;6m00 pause;B1=9m40 7/12/1977 Old Faithful 6:26 4:07 7/12/1977 Old Faithful 7:37 1:11:00 3:25 7:38 7/12/1977 Old Faithful 8:48 1:11:00 4:07 8:48 7/12/1977 Old Faithful 10:08 1:20:00 2:17 9:59 7/12/1977 Old Faithful 10:58 0:50:00 4:24 11:00 7/12/1977 Old Faithful 12:25 1:27:00 2:10 12:13 7/12/1977 Old Faithful 13:25 1:00:00 4:40 13:15 7/12/1977 Old Faithful 14:43 1:18:00 14:41 7/12/1977 Old Faithful 15:27 0:44:00 4:00 15:38 7/12/1977 Old Faithful 16:55 1:28:00 2:04 16:39 7/12/1977 Old Faithful 17:44 0:49:00 4:24 17:45 7/12/1977 Old Faithful 18:59:00 1:15:00 3:59 18:58 7/12/1977 Old Faithful 20:15 1:16:00 3:23 20:10 7/12/1977 Grand 0:15 7/12/1977 Grand 7:36 7/12/1977 Grand 15:47 7/12/1977 Riverside 11:35 7/12/1977 Riverside 18:02:00 7/12/1977 Castle 8:59:00 7/12/1977 Castle 18:09 7/12/1977 Great Fountain 11:24 7/12/1977 Great Fountain 20:37 7/12/1977 Fan & Mortar 13:07:00 to 13:26;major 7/12/1977 Rift 22:42 7/13/1977 Old Faithful 7:05 4:00 7/13/1977 Old Faithful 8:27 1:22:00 4:03 8:17 7/13/1977 Old Faithful 9:38 1:11:00 2:12 9:39 7/13/1977 Old Faithful 10:38 1:00:00 4:20 10:28 7/13/1977 Old Faithful 11:55 1:17:00 2:00 11:51 7/13/1977 Old Faithful 12:42 0:47:00 4:16 12:45 7/13/1977 Old Faithful 13:56 1:14:00 2:00 13:55 7/13/1977 Old Faithful 14:47 0:51:00 4:30 14:46 7/13/1977 Old Faithful 16:15 1:28:00 2:00 16:02 7/13/1977 Old Faithful 17:06 0:51:00 4:07 17:05 7/13/1977 Old Faithful 18:20 1:14:00 1:50 18:18 7/13/1977 Old Faithful 19:14 0:54:00 4:22 19:08 7/13/1977 Old Faithful 20:32 1:18:00 1:45 20:28 7/13/1977 Old Faithful 21:17 0:45:00 4:40 21:19 7/13/1977 Old Faithful 22:39 1:22:00 Short 22:32 7/13/1977 Old Faithful 23:30 0:51:00 Long 7/13/1977 Grand 7:32 7/13/1977 Grand 17:10 7/13/1977 Riverside 11:48 7/13/1977 Castle 12:49 7/13/1977 Castle 22:20:00 ie 7/13/1977 Great Fountain 15:59 7/13/1977 Lion 17:50 7/13/1977 Rift last night figure in a delay for Grand 7/14/1977 Old Faithful 7:41 2:50+ 7/14/1977 Old Faithful 8:35 0:54 3:45 8:36 7/14/1977 Old Faithful 10:06 1:31 3:40 9:46 7/14/1977 Old Faithful 11:09:00 1:03 3:45 11:16 7/14/1977 Old Faithful 12:23:00 1:14 3:32 12:19 7/14/1977 Old Faithful 13:34:00 1:11 2:28 13:33 7/14/1977 Old Faithful 14:28 0:54 4:03 14:29 7/14/1977 Old Faithful 15:49 1:21 1:46 15:41 7/14/1977 Old Faithful 16:48 0:59 4:28 16:36 7/14/1977 Old Faithful 18:04 1:16 3:29 18:03 7/14/1977 Old Faithful 19:15 1:11 3:22 19:14 7/14/1977 Old Faithful 20:35 1:20 3:30 20:25 7/14/1977 Castle 7:15 7/14/1977 Castle 16:36 ~16:22 7/14/1977 Grand 9:09 7/14/1977 Grand 18:06 7/14/1977 Riverside 11:29 7/14/1977 Riverside 17:53 7/14/1977 Great Fountain 14:34 7/14/1977 Dome 18:04 7/14/1977 Lion 18:35:00 7/14/1977 Penta 15:57:00 7/15/1977 Old Faithful 6:18 3:30~ 7/15/1977 Old Faithful 7:24 1:06 3:59 7:23 7/15/1977 Old Faithful 8:36 1:12 4:01 8:36 7/15/1977 Old Faithful 9:52 1:16 4:18 9:48 7/15/1977 Old Faithful 11:10 1:18 3:58 11:05 7/15/1977 Old Faithful 12:15 1:05 3:55 12:22 7/15/1977 Old Faithful 13:38 1:23 2:49 13:27 7/15/1977 Old Faithful 14:27 0:49 4:12 14:34 7/15/1977 Old Faithful 15:57 1:30 1:56 15:40 7/15/1977 Old Faithful 16:39:00 0:42 4:05 16:50 7/15/1977 Old Faithful 18:00 1:21 1:43 17:51 7/15/1977 Old Faithful 18:44 0:44 4:50~ 18:47 7/15/1977 Old Faithful 20:05 1:21 1:45 20:02 7/15/1977 Old Faithful 20:50 0:45 4:18 20:52 7/15/1977 Riverside 6:03 7/15/1977 Riverside 11:46 7/15/1977 Riverside 17:54 ieVR 7/15/1977 Great Fountain 0:50 7/15/1977 Great Fountain 8:41 7/15/1977 Great Fountain 17:58 7/15/1977 Castle 10:27 7/15/1977 Castle 19:52 unusually high eruption;J.L. 7/15/1977 Grand 9:51 4 Bursts 7/15/1977 Grand 17:34:00 7/15/1977 Lion 7:55 7/15/1977 Lion 13:05 7/15/1977 Lion 14:17 7/15/1977 Lion 16:00 7/15/1977 Lion 17:30 7/15/1977 Lion 18:59 7/15/1977 Fan & Mortar & Spiteful 17:11 VR major eruption 7/15/1977 Beehive 22:45 7/16/1977 Old Faithful 8:00 1:45 7/16/1977 Old Faithful 8:41 0:41 4:20 8:45 7/16/1977 Old Faithful 10:03 1:22 1:37 9:55 7/16/1977 Old Faithful 10:48 0:45 4:23 10:48 7/16/1977 Old Faithful 12:09 1:21 1:41 12:03 7/16/1977 Old Faithful 12:55 0:46 4:16 12:56 7/16/1977 Old Faithful 14:19 1:24 1:45 14:08 7/16/1977 Old Faithful 15:11 0:52 3:44 7/16/1977 Old Faithful 16:27 1:16 1:55Short 16:21 7/16/1977 Old Faithful 17:19 0:52 4:30 17:17 7/16/1977 Old Faithful 18:44 1:25 3:45 18:34 7/16/1977 Old Faithful 20:02 1:18 4:13 19:54 7/16/1977 Riverside 6:45 VR 7/16/1977 Riverside 13:05 7/16/1977 Castle 13:41 7/16/1977 Grand 9:50 7/16/1977 Grand 19:45 4 bursts 7/16/1977 Great Fountain 12:56 7/16/1977 Great Fountain 22:03 pause 4m39s 7/17/1977 Old Faithful 7:25 ie 7/17/1977 Old Faithful 8:26 1:01 3:18 7/17/1977 Old Faithful 9:40 1:14 4:30 9:31 7/17/1977 Old Faithful 11:00 1:20 4:04 10:55 7/17/1977 Old Faithful 12:12 1:12 2:07 12:12 7/17/1977 Old Faithful 13:07 0:55 4:21 13:02 7/17/1977 Old Faithful 14:30 1:23 1:45 14:20 7/17/1977 Old Faithful 15:17 0:47 4:27 15:16 7/17/1977 Old Faithful 16:38 1:21 2:00 16:32 7/17/1977 Old Faithful 17:45 1:07 4:45 17:28 7/17/1977 Old Faithful 19:11 1:26 4:04 19:00 7/17/1977 Old Faithful 20:21 1:10 2:24 20:24 7/17/1977 Old Faithful 21:15 0:54 21:16 7/17/1977 Grand 13:02 3 burst 7/17/1977 Grand 21:03 2 bursts 7/17/1977 Castle 9:45 7/17/1977 Castle 19:34:00 7/17/1977 Riverside 13:00 7/17/1977 Riverside ~19:10 7/17/1977 North Goggles 12:03 7/17/1977 Great Fountain 16:12 7/17/1977 Aurum 19:47 7/17/1977 Round 21:31 7/17/1977 Lion 21:35 7/18/1977 Old Faithful 8:00 3:43 7/18/1977 Old Faithful 9:14 1:14 3:30 9:10 7/18/1977 Old Faithful 10:29 1:15 2:05 10:24 7/18/1977 Old Faithful 11:28 0:59 4:16 11:19 7/18/1977 Old Faithful 12:45 1:17 1:39 12:41 7/18/1977 Old Faithful 13:38 0:53 4:22 13:32 7/18/1977 Old Faithful 15:00 1:22 1:58 14:52 7/18/1977 Old Faithful 15:52 0:52 4:04 15:50 7/18/1977 Old Faithful 17:06 1:14 2:00 17:04 7/18/1977 Old Faithful 17:59 0:53 4:45 17:56 7/18/1977 Old Faithful 19:25 1:26 2:55 19:15 7/18/1977 Old Faithful 20:18 0:53 4:10 20:25 7/18/1977 Rift 8:04 7/18/1977 Rift 12:40 7/18/1977 Riverside 13:08 7/18/1977 Riverside 18:17 7/18/1977 Grand 17:48 7/18/1977 Castle 15:30 7/19/1977 Old Faithful 6:20 2:21 7/19/1977 Old Faithful 7:17 0:57 4:35 7:14 7/19/1977 Old Faithful 8:32 1:15 1:54short 8:32 7/19/1977 Old Faithful 9:18 0:46 4:21 9:21 7/19/1977 Old Faithful 10:34 1:16 3:32 10:32 7/19/1977 Old Faithful 11:45 1:11 3:57 11:44 7/19/1977 Old Faithful 12:59 1:14 2:06 12:58 7/19/1977 Old Faithful 13:51 0:52 4:50 13:51 7/19/1977 Old Faithful 15:15 1:24 3:36 15:07 7/19/1977 Old Faithful 16:25 1:10 4:02 16:25 7/19/1977 Old Faithful 17:48 1:23 4:15 17:37 7/19/1977 Old Faithful 19:01 1:13 3:45 19:01 7/19/1977 Old Faithful 20:08 1:07 3:58 20:11 7/19/1977 Old Faithful 21:19 1:11 7/19/1977 Riverside 0:06 7/19/1977 Riverside 5:53 7/19/1977 Riverside 12:08 7/19/1977 Beehive 6:10 7/19/1977 Beehive 16:17 7/19/1977 Castle 0:44 7/19/1977 Castle 9:55 7/19/1977 Castle 19:45 VR 7/19/1977 Grand 1:23 7/19/1977 Grand 10:58 2 bursts 7/19/1977 Grand 18:50 7/19/1977 Great Fountain 13:50 7/20/1977 Old Faithful 8:12 3:23 7/20/1977 Old Faithful 9:18 1:06 3:37 9:22 7/20/1977 Old Faithful 10:39 1:21 2:00 10:28 7/20/1977 Old Faithful 11:35 0:56 3:34 11:29 7/20/1977 Old Faithful 12:45 1:10 3:40 12:45 7/20/1977 Old Faithful 13:56 1:11 3:45 13:55 7/20/1977 Old Faithful 15:13 1:17 2:12 15:08 7/20/1977 Old Faithful 16:04 0:51 4:08 16:05 7/20/1977 Old Faithful 17:24 1:20 1:53 17:17 7/20/1977 Old Faithful 18:13 0:49 4:10 18:13 7/20/1977 Old Faithful 19:35 1:22 3:55 19:25 7/20/1977 Old Faithful 20:57 1:22 3:56 20:46 7/20/1977 Grand 10:58 7/20/1977 Grand 20:45 7/20/1977 Castle 14:35 7/20/1977 Great Fountain 11:25 7/20/1977 Riverside 13:17 7/20/1977 Spiteful 16:05 7/21/1977 Old Faithful 7:37 ie 7/21/1977 Old Faithful 8:48 1:11 3:24 08:30? 7/21/1977 Old Faithful 9:59 1:11 3:18 9:58 7/21/1977 Old Faithful 11:08 1:09 3:35 11:06 7/21/1977 Old Faithful 12:28 1:20 ~4:00 12:18 7/21/1977 Old Faithful 13:50 1:22 1:40 13:40 7/21/1977 Old Faithful 14:45 0:55 4:00 14:36 7/21/1977 Old Faithful 16:04 1:19 3:07 15:57 7/21/1977 Old Faithful 17:19 1:15 4:15 17:04 7/21/1977 Old Faithful 18:37 1:18 3:37 18:32 7/21/1977 Old Faithful 19:50 1:13 3:31 19:47 7/21/1977 Old Faithful 21:00 1:10 3:20 21:00 7/21/1977 Grand 6:49 7/21/1977 Grand 14:02 7/21/1977 Riverside 6:45 7/21/1977 Riverside 12:53 7/21/1977 Riverside 18:34 7/21/1977 Castle 8:59 7/21/1977 Castle 18:13 7/21/1977 Great Fountain 8:20 ie 7/21/1977 Great Fountain 16:25 7/22/1977 Old Faithful 8:20 4:00 7/22/1977 Old Faithful 9:36 1:16 2:02 9:32 7/22/1977 Old Faithful 10:27 0:51 4:18 10:26 7/22/1977 Old Faithful 11:49 1:22 1:52 11:40 7/22/1977 Old Faithful 12:36 0:47 4:04 12:38 7/22/1977 Old Faithful 14:02 1:26 3:10 13:48 7/22/1977 Old Faithful 15:04 1:02 4:20 15:07 7/22/1977 Old Faithful 16:23 1:19 3:22 16:17 7/22/1977 Old Faithful 17:45 1:22 4:16 17:33 7/22/1977 Old Faithful 18:52 1:07 4:13 18:58 7/22/1977 Old Faithful 20:05 1:13 3:45 20:05 7/22/1977 Old Faithful 21:14:00 1:09 3:36or3:56 21:15 7/22/1977 Castle 3:47 no steam phase at 05:30 7/22/1977 Castle 12:07 7/22/1977 Castle 22:38 7/22/1977 Grand 5:37 1 burst 7/22/1977 Grand 13:40 7/22/1977 Riverside 6:45 7/22/1977 Riverside 12:31 7/22/1977 Riverside 18:15 VR 7/22/1977 Riverside 23:55 7/22/1977 Great Fountain 21:05 7/22/1977 Beehive 7:45 7/22/1977 Beehive 19:03 7/22/1977 Lion 9:40 7/22/1977 Lion 12:36 7/22/1977 Beehive's Indicator 13:39 7/22/1977 Rift 7:19 7/23/1977 Old Faithful 8:17 4:47 7/23/1977 Old Faithful 9:37 1:20 1:47 7/23/1977 Old Faithful 10:23 0:46 4:35 7/23/1977 Old Faithful 10:43not typo 1:20 1:57 7/23/1977 Old Faithful 12:38 0:55 4:37 7m47 7/23/1977 Old Faithful 13:59 1:21 3:14 9m13 7/23/1977 Old Faithful 15:04 1:05 4:07 12m38 7/23/1977 Old Faithful 16:16 1:12 4:00 7/23/1977 Old Faithful 17:22 1:06 4:00 7/23/1977 Old Faithful 18:38 1:16 3:56 7/23/1977 Old Faithful 20:01 1:23 3:39 7/23/1977 Old Faithful 21:17 1:16 4:26 10m47 7/23/1977 Old Faithful 22:25 1:08 3:14 1m33 7/23/1977 Castle 6:55 7/23/1977 Castle 15:30 minor 7/23/1977 Castle 19:06 7/23/1977 Grand 0:28 7/23/1977 Grand 8:50 7/23/1977 Grand 15:37 3b 7/23/1977 Riverside 6:13 7/23/1977 Riverside 12:36 VR 20min duration 7/23/1977 Riverside 18:25 VR 7/23/1977 Great Fountain 6:04 7/23/1977 Great Fountain 17:25 7/23/1977 Oblong 9:11 VR 7/23/1977 Beehive's Indicator 10:21 ie 7/23/1977 Beehive's Indicator 12:14 7/23/1977 Beehive's Indicator 16:48 7/23/1977 Spiteful 14:55 7/23/1977 Lone Star 15:05 10m water;15m steam phase 7/24/1977 Old Faithful 7:48 ie 4:00? 7/24/1977 Old Faithful 9:02 1:14 3:26 9:00 7/24/1977 Old Faithful 10:05 1:03 ~3:15 10:12 7/24/1977 Old Faithful 11:23 1:18 4:06 11:10 7/24/1977 Old Faithful 12:35 1:12 4:04 12:35 7/24/1977 Old Faithful 13:48 1:13 3:42 13:47 7/24/1977 Old Faithful 14:54 1:06 3:39 2:58 7/24/1977 Old Faithful 16:15 1:21 1:53 16:04 7/24/1977 Old Faithful 16:55 0:40 4:15 17:02 7/24/1977 Old Faithful 18:12 1:17 3:38 18:08 7/24/1977 Old Faithful 19:26 1:14 4:30 19:22 7/24/1977 Old Faithful 20:36 1:10 4:02 20:41 7/24/1977 Old Faithful 21:47 1:11 Long 21:48 7/24/1977 Old Faithful 23:05 1:18 4:18 7/24/1977 Old Faithful 00:21not typo 1:16 4:23 7/24/1977 Old Faithful 01:40not typo 1:19 2:03 7/24/1977 Riverside 12:25 20:38 duration 7/24/1977 Riverside 18:06 D=20:04 7/24/1977 Grand 6:37 7/24/1977 Grand 13:59 4bursts 7/24/1977 Beehive's Indicator 7:10 7/24/1977 Beehive's Indicator 15:05 7/24/1977 Great Fountain ~10:30 7/24/1977 Castle 13:50 closer to 13:34 7/25/1977 Old Faithful 0:21 4:06 7/25/1977 Old Faithful 8:33 8:12 1:54 7/25/1977 Old Faithful 9:19 0:46 3:40 9:23 7/25/1977 Old Faithful 10:42 1:23 1:39 10:29 7/25/1977 Old Faithful 11:35 0:53 3:46 11:28 7/25/1977 Old Faithful 12:47 1:12 2:29 12:45 7/25/1977 Old Faithful 13:52 1:05 4:35 13:42 7/25/1977 Old Faithful 15:12 1:20 1:46 15:07 7/25/1977 Old Faithful 16:06 0:54 4:45 15:58 7/25/1977 Old Faithful 17:23 1:17 17:22 7/25/1977 Old Faithful 18:35 1:12 2:08 18:35 7/25/1977 Old Faithful 19:27 0:52 4:20 19:26 7/25/1977 Old Faithful 20:53 1:26 2:00 20:40 7/25/1977 Castle 8:00 7/25/1977 Castle 17:20 7/25/1977 Lion 9:20 7/25/1977 Lion 11:10 7/25/1977 Lion 13:15 7/25/1977 Lion 16:00 7/25/1977 Lion 16:40 ie 7/25/1977 Lion 20:50 7/25/1977 Riverside 6:25 VR 7/25/1977 Riverside 12:00 7/25/1977 Riverside 18:10 7/25/1977 Artemisia 7:45 7/25/1977 Artemisia 12:00 7/25/1977 Grand 12:54 1B-9m35;2B-35s;3B52s;Turban start 1m into Grand ie 7/25/1977 Grand 19:32 7/25/1977 Great Fountain 17:22 lasted 38m (ie at 17:36) 7/25/1977 Clepsydra 20:30 8:30PM 7/26/1977 Old Faithful 7:00 ~2:45 7/26/1977 Old Faithful 8:15 1:15 ~3:16 7:55 7/26/1977 Old Faithful 9:06 0:51 ~4:16 9:20 7/26/1977 Old Faithful 10:36 1:30 3:02 10:19 7/26/1977 Old Faithful 11:48 1:12 3:52 11:36 7/26/1977 Old Faithful 13:00 1:12 2:12 12:58 7/26/1977 Old Faithful 13:51 0:51 3:51 13:52 7/26/1977 Old Faithful 15:10 1:19 3:56 15:02 7/26/1977 Old Faithful 16:15 1:05 ~4:00 16:22 7/26/1977 Old Faithful 17:31 1:16 2:30 17:26 7/26/1977 Old Faithful 18:33 1:02 4:50 18:26 7/26/1977 Old Faithful 19:54 1:21 3:30 19:48 7/26/1977 Old Faithful 21:09 1:15 4:11 21:04 7/26/1977 Dome 16:45 ie (2-3 ft.) 7/26/1977 Oblong 12:00 7/26/1977 Riverside 6:15 7/26/1977 Riverside 12:47 7/26/1977 Riverside 18:32 7/26/1977 Grand 3:25 2 Bursts 7/26/1977 Grand 11:50 1 Burst 7/26/1977 Grand 19:18 1 burst- 18 min duration 7/26/1977 Castle 2:26 7/26/1977 Castle 11:52 7/26/1977 Castle 20:50 7/26/1977 Great Fountain 13:08 7/26/1977 Lion 9:50 7/26/1977 Lion 11:23 7/26/1977 Lion 13:17 7/26/1977 Artemisia 9:59 7/26/1977 Spiteful 10:30 (major eruption) 7/26/1977 Fountain 21:00 ie 7/27/1977 Old Faithful 6:56 long 7/27/1977 Old Faithful 8:02 1:06 ~3 1/2 8:02 7/27/1977 Old Faithful 9:20 1:18 1:53 9:12 7/27/1977 Old Faithful 10:07 0:47 3:28 10:10 7/27/1977 Old Faithful 11:42 1:35 3:38 11:17 7/27/1977 Old Faithful 12:56 1:14 4:15 12:57 7/27/1977 Old Faithful 14:08 1:12 2:36 14:09 7/27/1977 Old Faithful 15:16 1:08 4:32 15:03 7/27/1977 Old Faithful 16:38 1:22 1:45 16:31 7/27/1977 Old Faithful 17:34 0:56 4:40 17:25 7/27/1977 Old Faithful 19:01 1:27 1:42 18:50 7/27/1977 Old Faithful 19:51 0:50 4:32 19:48 7/27/1977 Castle 6:45 ie going into steam phase 7/27/1977 Castle 15:40 ie 7/27/1977 Grand 2:57 4 Bursts 7/27/1977 Grand 1:47not typo 3 bursts 7/27/1977 Grand 20:31 4B 7/27/1977 Riverside 0:50 7/27/1977 Riverside 6:40 7/27/1977 Riverside 12:55 7/27/1977 Riverside 19:17 7/27/1977 Great Fountain 9:13 ie 7/27/1977 Great Fountain 18:00 7/27/1977 Beehive 10:12 7/27/1977 Artemisia 18:55 7/27/1977 Dome ie various times ie 7/28/1977 Old Faithful 7:36 2:50+ 7/28/1977 Old Faithful 8:27:00 0:51 2:47 8:31 7/28/1977 Old Faithful 9:48:00 1:21 1:51 9:23 7/28/1977 Old Faithful 10:41 0:53 4:14 10:36 7/28/1977 Old Faithful 11:55 1:14 3:30 11:54 7/28/1977 Old Faithful 13:12 1:17 4:22 13:05 7/28/1977 Old Faithful 14:26 1:14 4:04 14:26 7/28/1977 Old Faithful 15:38:00 1:12 2:57 15:38 7/28/1977 Old Faithful 17:01 1:23 3:35 16:38 7/28/1977 Old Faithful 18:19 1:18 4:21 18:11 7/28/1977 Old Faithful 19:22 1:03 2:22 19:33 7/28/1977 Old Faithful 20:24 1:02 4:31 20:12 7/28/1977 Fan & Mortar 22:40 by Jone 7/28/1977 Lion 21:55 ie 7/28/1977 Grand 14:21 4b 7/28/1977 Grand 21:35 3b 7/28/1977 Atomizer 19:18 major-D=9m41 7/28/1977 Riverside 1:09 7/28/1977 Riverside 7:32 7/28/1977 Riverside 13:20 7/28/1977 Riverside 19:03 7/28/1977 Castle 1:24 7/28/1977 Castle 10:50 ie 10:40 ieVR 7/28/1977 Castle 20:08 7/28/1977 Artemisia 18:58 18:58thump;major 190152 (16m06) 7/28/1977 Dome 8:51 7/28/1977 Dome 19:25 7/28/1977 Beehive 12:34 7/28/1977 Great Fountain 12:55 7/28/1977 Fountain 14:30 ie 7/28/1977 Beehive's Indicator 18:04 ie 7/29/1977 Old Faithful 6:06 2:04 7/29/1977 Old Faithful 7:08 1:02 4:43 6:56 7/29/1977 Old Faithful 8:24 1:16 1:52 8:24 7/29/1977 Old Faithful 9:17 0:53 3:40 9:14 7/29/1977 Old Faithful 10:41 1:24 4:03 10:27 7/29/1977 Old Faithful 11:55 1:14 4:15 11:53 7/29/1977 Old Faithful 13:08 1:13 1:36 13:08 7/29/1977 Old Faithful 14:00 0:52 4:18 13:53 7/29/1977 Old Faithful 15:14 1:14 2:31 15:13 7/29/1977 Old Faithful 16:11 0:57 4:22 16:09 7/29/1977 Old Faithful 17:31 1:20 3:43 17:25 7/29/1977 Old Faithful 18:45 1:14 1:41 18:41 7/29/1977 Old Faithful 18:35not typo 0:50 3:08 19:32 7/29/1977 Old Faithful 20:55 1:30 1:51 19:35not typo 7/29/1977 Dome 10:19 7/29/1977 Dome 11:54 7/29/1977 Grand 4:46 3B 7/29/1977 Grand 12:20 2B 7/29/1977 Grand 19:59 7/29/1977 Castle 5:11 7/29/1977 Castle 13:58 7/29/1977 Riverside 1:20 7/29/1977 Riverside 7:40 7/29/1977 Riverside 13:49 7/29/1977 Riverside 19:40 7/29/1977 Great Fountain 6:45 7/29/1977 Oval Spring 5:24 "1min43s,2ft." 7/29/1977 Oval Spring 5:33 "1m58s, 6ft." 7/29/1977 Lion 5:41 7/29/1977 Lion 7:02 7/29/1977 Lion 8:45 7/29/1977 Lion 10:47 ie minor 7/29/1977 Lion 16:47 7/29/1977 Lion 19:04 7/29/1977 Lion 20:45 7/29/1977 Beehive 11:00 7/29/1977 Beehive's Indicator 21:00 7/30/1977 Old Faithful ~07:10 7/30/1977 Old Faithful 8:18 ~1:08 3:58 8:20 7/30/1977 Old Faithful 9:31 1:13 3:40 9:30 7/30/1977 Old Faithful 10:39 1:08 3:30 10:41 7/30/1977 Old Faithful 11:49 1:10 3:28 11:50 7/30/1977 Old Faithful 13:03 1:14 4:17 12:58 7/30/1977 Old Faithful 14:15 1:12 3:45 14:16 7/30/1977 Old Faithful 15:20 1:05 3:40 15:25 7/30/1977 Old Faithful 16:36 1:16 2:30 16:30 7/30/1977 Old Faithful 17:26 0:50 3:53 17:31 7/30/1977 Old Faithful 18:44 1:18 2:14 18:37 7/30/1977 Old Faithful 19:47 1:03 4:34 19:36 7/30/1977 Old Faithful 20:58 1:11 2:18 21:02 7/30/1977 Old Faithful 21:48 0:50 4:20 20:50 7/30/1977 Old Faithful 23:11 1:23 2:17 2b 7/30/1977 Great Fountain 19:02 7/30/1977 Riverside 1:26 D=20:40 7/30/1977 Riverside 7:12 D=20:27 7/30/1977 Riverside 12:57 D=20:28 7/30/1977 Riverside 19:21 D=20:17 7/30/1977 Grand 3:06 5bursts-Marie Wolf 7/30/1977 Grand 11:48 2bursts 7/30/1977 Grand 20:30 7/30/1977 Castle 8:50 ie 7/30/1977 Castle 18:10 7/30/1977 Spiteful 7:23 ie 7/30/1977 Depression 13:32 7/30/1977 Beehive 23:06 7/31/1977 Old Faithful 8:26 3:56 7/31/1977 Old Faithful 9:43 1:17 2:12 9:37 7/31/1977 Old Faithful 10:42 0:59 4:15 10:35 7/31/1977 Old Faithful 11:53 1:11 11:56 7/31/1977 Old Faithful 12:48 0:55 4:27 12:45 7/31/1977 Old Faithful 14:11 1:23 2:04 14:03 7/31/1977 Old Faithful 15:03 0:52 4:28 15:01 7/31/1977 Old Faithful 16:23 1:20 2:07 16:18 7/31/1977 Old Faithful 17:21 0:58 3:56 17:15 7/31/1977 Old Faithful 18:41 1:20 1:58 18:33 7/31/1977 Old Faithful 19:29 0:48 4:14 19:31 7/31/1977 Old Faithful 20:55 1:26 4:05 20:42 7/31/1977 Riverside 1:12 7/31/1977 Riverside 6:56 7/31/1977 Riverside 12:47 7/31/1977 Riverside 19:04 7/31/1977 Grand 5:54 3B 7/31/1977 Grand 14:30 ie 7/31/1977 Grand 19:45 7/31/1977 Castle 3:10 7/31/1977 Castle 12:08 7/31/1977 Castle 21:05 7/31/1977 Great Fountain 12:55 "200' +, wet parked cars" 7/31/1977 Great Fountain 21:45 7/31/1977 Dome 12:50 7/31/1977 Spiteful & Mortar plus Fan 14:15 VR ~15min good eruption 8/1/1977 Old Faithful 7:18 8/1/1977 Old Faithful 8:37 1:19 2:41 8/1/1977 Old Faithful 9:37 1:00 4:25 9:32 8/1/1977 Old Faithful 10:57 1:20 1:41 10:52 8/1/1977 Old Faithful 11:48 0:51 4:27 11:44 8/1/1977 Old Faithful 13:04 1:16 1:53 13:02 8/1/1977 Old Faithful 14:00 0:56 4:15 13:59 8/1/1977 Old Faithful 15:14 1:14 3:40 15:13 8/1/1977 Old Faithful 16:29 1:15 1:57 16:24 8/1/1977 Old Faithful 17:13 0:44 4:30 17:19 8/1/1977 Old Faithful 18:33 1:20 1:46 18:28 8/1/1977 Old Faithful 19:22 0:49 4:30 19:20 8/1/1977 Old Faithful 20:38 1:16 3:15 20:37 8/1/1977 Beehive 15:40 ~2m20sduration 8/1/1977 Castle 6:21 8/1/1977 Castle 15:19 8/1/1977 Grand 5:48 4bursts 8/1/1977 Grand 14:40/14:42 2bursts 8/1/1977 Great Fountain 13:55 8/1/1977 Great Fountain 22:57 10:57pm 8/1/1977 Rift between19:30&20:30 8/1/1977 Riverside 1:27 8/1/1977 Riverside 7:17 8/1/1977 Riverside 13:03 8/1/1977 Riverside 19:21 8/1/1977 Round 17:12 8/2/1977 Old Faithful 7:03 Long 8/2/1977 Old Faithful 8:19 1:16 1:52 8:13 8/2/1977 Old Faithful 9:28 1:09 4:30 9:07 8/2/1977 Old Faithful 10:40 1:12 3:41 10:43 8/2/1977 Old Faithful 11:57 1:17 2:04 11:50 8/2/1977 Old Faithful 12:41 0:44 4:06 12:47 8/2/1977 Old Faithful 13:56 1:15 2:16 13:53 8/2/1977 Old Faithful 15:00 1:04 4:31 14:48 8/2/1977 Old Faithful 16:16 1:16 4:03 16:15 8/2/1977 Old Faithful 17:23 1:07 4:08 17:28 8/2/1977 Old Faithful 18:34 1:11 2:32 18:40 8/2/1977 Old Faithful 19:25 0:51 4:44 19:29 8/2/1977 Old Faithful 20:49 1:24 2:10 20:45 8/2/1977 Bulger 6:06 8/2/1977 Bulger 10:01 8/2/1977 Castle 9:35 8/2/1977 Castle 6:45notypo 8/2/1977 Grand 0:14 8/2/1977 Grand 9:41 8/2/1977 Grand 16:52 3bursts 8/2/1977 Great Fountain 9:11 8/2/1977 Great Fountain 18:00 ieVR 8/2/1977 Lion 18:00 ie 8/2/1977 Oblong 9:34 8/2/1977 Riverside 1:15 8/2/1977 Riverside 7:31 8/2/1977 Riverside 13:19 8/2/1977 Riverside 19:04 8/2/1977 Round 10:01 8/2/1977 Sawmill 6:25 8/2/1977 Sawmill 8:53 8/2/1977 Spiteful 11:08 8/3/1977 Old Faithful 7:07 4:00 8/3/1977 Old Faithful 8:22 1:15 3:57 8:19 8/3/1977 Old Faithful 9:28 1:06 1:43 9:34 8/3/1977 Old Faithful 10:45 1:17 4:42 10:16 8/3/1977 Old Faithful 12:00 1:15 3:35 12:01 8/3/1977 Old Faithful 13:12 1:12 4:16 13:10 8/3/1977 Old Faithful 14:32 1:20 4:20 14:25 8/3/1977 Old Faithful 15:46 1:14 4:00 15:46 8/3/1977 Old Faithful 16:55 1:09 4:09 16:58 8/3/1977 Old Faithful 18:01 1:06 4:23 18:08 8/3/1977 Old Faithful 19:16 1:15 4:02 19:16 8/3/1977 Old Faithful 20:38 1:22 4:26 20:28 8/3/1977 Anemone North had first eruptions since fall in last day or two 8/3/1977 Artemisia 7:58 ie 8/3/1977 Beehive's Indicator 19:31 8/3/1977 Castle 12:50 ie 8/3/1977 Castle 22:56 8/3/1977 Depression 20:47 ie 8/3/1977 Fan & Mortar 11:13 major eruption! 8/3/1977 Grand 7:58 8/3/1977 Grand 15:14 8/3/1977 Grand 22:36 8/3/1977 Great Fountain 11:22 8/3/1977 Great Fountain 21:12 8/3/1977 Grotto Fountain 20:07 8/3/1977 Lion 8:30 8/3/1977 Lion 14:22 8/3/1977 Lion 18:04 8/3/1977 Lion 19:50 8/3/1977 Oblong 7:57 8/3/1977 Riverside 0:51 8/3/1977 Riverside 7:08 8/3/1977 Riverside 13:29 8/3/1977 Riverside 19:19 VR 8/3/1977 Round 7:02 ie South Grotto Fountain 20:07 8/3/1977 Silex Spring 11:13 10-20feet 8/4/1977 Old Faithful 7:40 short2:00 8/4/1977 Old Faithful 8:32 0:52 4:40 8:30 8/4/1977 Old Faithful 9:53 1:21 1:50 9:48 8/4/1977 Old Faithful 10:42 0:49 4:15 10:40 8/4/1977 Old Faithful 11:54 1:12 3:37 11:55 8/4/1977 Old Faithful 13:02 1:08 2:34 13:04 8/4/1977 Old Faithful 13:58 0:56 4:14 13:57 8/4/1977 Old Faithful 15:21 1:23 1:49 15:11 8/4/1977 Old Faithful 16:08 0:47 3:57 16:08 8/4/1977 Old Faithful 17:32 1:24 3:42 17:20 8/4/1977 Old Faithful 18:40 1:08 ~4:00 18:42 8/4/1977 Old Faithful 19:55 1:15 1:41 19:50 8/4/1977 Old Faithful 20:44 0:49 4:32 8/4/1977 Old Faithful 21:56 1:12 8/4/1977 Beehive's Indicator 10:50 ie 8/4/1977 Beehive's Indicator 13:50 ie 8/4/1977 Beehive's Indicator 19:15 ie 8/4/1977 Castle 8:04 8/4/1977 Castle 16:57 8/4/1977 Grand 6:34 07:00approx 8/4/1977 Grand 14:57 "2bursts,1st=10.5m" 8/4/1977 Grand 22:53 ie 8/4/1977 Great Fountain 16:15 ie 8/4/1977 N. Anemone 9:00 ie welcome back! 8/4/1977 Riverside 1:00 8/4/1977 Riverside 6:34 8/4/1977 Riverside 12:49 8/4/1977 Riverside 18:34 8/4/1977 Riverside 23:54 8/4/1977 Silex 16:30 ie 3-6ft 8/5/1977 Old Faithful 7:29 1:39 8/5/1977 Old Faithful 8:21 0:52 3:35 8:16 8/5/1977 Old Faithful 9:38 1:17 3:45 9:31 8/5/1977 Old Faithful 10:54 1:16 4:16 10:48 8/5/1977 Old Faithful 12:04 1:10 3:29 12:06 8/5/1977 Old Faithful 13:22 1:18 4:00 13:14 8/5/1977 Old Faithful 14:45 1:23 4:13 14:34 8/5/2003 Old Faithful 15:54 1:09 1:53 15:58 8/5/1977 Old Faithful 16:43 0:49 4:34 16:43 8/5/1977 Old Faithful 18:03 1:20 2:21 17:58 8/5/1977 Old Faithful 18:51 0:48 ~3:40 18:58 8/5/1977 Old Faithful 20:16 1:25 4:14 20:01 8/5/1977 Aurum 17:42 ie 8/5/1977 Beehive 7:34 8/5/1977 Castle 12:43 12:37VR 8/5/1977 Castle 21:37 8/5/1977 Grand 6:12 3Bs 8/5/1977 Grand 13:25 8/5/1977 Grand 21:05 2bursts 8/5/1977 Great Fountain 9:55 8/5/1977 Great Fountain 18:50 VR 8/5/1977 Oblong 21:21 8/5/1977 Riverside 5:36 8/5/1977 Riverside 11:14 8/5/2003 Riverside 16:55 VR 3/17/1900 Riverside 22:39 8/5/1977 Round 13:56 8/5/1977 Silex Spring 10:40 8/6/1977 Old Faithful ~07:30 VR ~4:00 8/6/1977 Old Faithful 8:48 ~1:18 1:52 08:42approx 8/6/1977 Old Faithful 9:33 0:45 4:45 9:36 8/6/1977 Old Faithful 10:47 1:14 2:16 10:49 8/6/1977 Old Faithful 11:50 1:03 4:20 11:40 8/6/1977 Old Faithful 13:08 1:18 3:30 13:03 8/6/1977 Old Faithful 14:24 1:16 4:37 14:18 8/6/1977 Old Faithful 15:47 1:23 4:09 15:39 8/6/1977 Old Faithful 17:01 1:14 3:50 17:00 8/6/1977 Old Faithful 18:17 1:16 4:26 18:12 8/6/1977 Old Faithful 19:25 1:08 4:05 19:30 8/6/1977 Old Faithful 20:46 1:21 3:49 20:37 8/6/1977 Aurum 15:37 8/6/1977 Beehive 5:26 8/6/1977 Castle 6:15 ie 8/6/1977 Castle 15:49 8/6/1977 Grand 4:54 3B 8/6/1977 Grand 12:37 ie 8/6/1977 Grand 19:40 2B 8/6/1977 Great Fountain 12:20 Oblong 12:42? 8/6/1977 Riverside 5:00 8/6/1977 Riverside 10:54 8/6/1977 Riverside 16:36 8/6/1977 Riverside 22:24 8/7/1977 Old Faithful 7:29 ie 03:30? 8/7/1977 Old Faithful 8:55 >1:26 ~01:55 8:39 8/7/1977 Old Faithful 9:44 0:49 4:22 9:50 8/7/1977 Old Faithful 11:00 1:16 2:57 10:57 8/7/1977 Old Faithful 12:06 1:06 4:20 11:58 8/7/1977 Old Faithful 13:29 1:23 3:30 13:19 8/7/1977 Old Faithful 14:30 1:01 3:37 14:39 8/7/1977 Old Faithful 15:45 1:15 4:00 15:40 8/7/1977 Old Faithful 16:57 1:12 2:22 16:57 8/7/1977 Old Faithful 17:51 0:54 4:30 17:54 8/7/1977 Old Faithful 19:12 1:21 1:53 19:09 8/7/1977 Old Faithful 20:01 0:49 4:21 20:02 8/7/1977 Old Faithful 21:15 1:14 1:57 21:15 8/7/1977 Old Faithful 22:12 0:57 4:06 22:05 8/7/1977 Castle 9:30 minor 8/7/1977 Castle 13:06 13:22ie 8/7/1977 Grand 3:16 3burst 8/7/1977 Grand 11:11 8/7/1977 Grand 18:45 8/7/1977 Great Fountain 0:30 8/7/1977 Great Fountain 7:45 ? 8/7/1977 Great Fountain 16:36 VR 16:40VR 10min 8/7/1977 Grotto Fountain 15:08 8/7/1977 Riverside 4:04 8/7/1977 Riverside 9:43 8/7/1977 Riverside 15:24 8/7/1977 Riverside 21:41 8/8/1977 Old Faithful 8:16 3:51 8/8/1977 Old Faithful 9:34 1:18 3:43 9:27 8/8/1977 Old Faithful 10:51 1:17 3:48 10:44 8/8/1977 Old Faithful 11:54 1:03 4:14 12:01 8/8/1977 Old Faithful 13:14 1:20 1:53 13:06 8/8/1977 Old Faithful 14:07 0:53 4:30 14:03 8/8/1977 Old Faithful 15:23 1:16 1:45 15:22 8/8/1977 Old Faithful 16:10 0:47 4:15 16:10 8/8/1977 Old Faithful 17:24 1:14 1:57 17:23 8/8/1977 Old Faithful 18:26 1:02 4:33 18:14 8/8/1977 Old Faithful 19:43 1:17 1:59 19:41 8/8/1977 Old Faithful 20:28 0:45 3:55 20:33 8/8/1977 Old Faithful 21:53 1:25 1:47 21:40 8/8/1977 Old Faithful 22:40 0:47 4:36 22:43 8/8/1977 Beehive 20:14 8/8/1977 Beehive's Indicator 11:11 ie 8/8/1977 Castle 8:01 8/8/1977 Castle 17:25 8/8/1977 Fan and Mortar 11:40 15min 8/8/1977 Grand 4:17 8/8/1977 Grand 12:53 8/8/1977 Great Fountain 12:38 VR 8/8/1977 Great Fountain 20:57 8/8/1977 Lion 9:45:00 steam 8/8/1977 Lion 13:20 8/8/1977 Rift 0:06 8/8/1977 Rift 5:50 8/8/1977 Riverside 3:21:00 8/8/1977 Riverside 9:04:00 8/8/1977 Riverside 15:33 8/9/1977 Old Faithful 0:03 1:23 1:58 23:55 8/9/1977 Old Faithful 6:57 4:22 8/9/1977 Old Faithful 8:12 1:15 3:00 8:12 8/9/1977 Old Faithful 9:02 0:50 3:30 9:12 8/9/1977 Old Faithful 10:21 1:19 4:00 10:12 8/9/1977 Old Faithful 11:35 1:14 3:38 11:32 8/9/1977 Old Faithful 12:47 1:12 short2:00 12:45 8/9/1977 Old Faithful 13:32 0:45 4:34 13:37 8/9/1977 Old Faithful 14:55 1:23 3:43 14:47 8/9/1977 Old Faithful 16:06 1:11 3:51 16:05 8/9/1977 Old Faithful 17:28 1:22 1:48 17:17 8/9/1977 Old Faithful 18:15 0:47 4:20 18:16 8/9/1977 Old Faithful 19:34 1:19 1:29 19:29 8/9/1977 Old Faithful 20:19 0:45 4:32 20:22 8/9/1977 Old Faithful 21:37 1:18 3:44 21:34 8/9/1977 Artemisia 7:50 by Jamie 8/9/1977 Artemisia 18:42 by Jamie 8/9/1977 Aurum 16:10 8/9/1977 Beehive's Indicator 15:35 8/9/1977 Castle 4:06 8/9/1977 Castle 11:44 8/9/1977 Castle 21:06 8/9/1977 Grand 5:14 5Bursts 8/9/1977 Grand 13:14 4b 8/9/1977 Grand 20:46 3b 8/9/1977 Great Fountain 14:13 "B1=10m39,P1=3m38" 8/9/1977 Great Fountain 23:20 8/9/1977 Lion 21:25 ie 8/9/1977 Riverside 10:40 8/9/1977 Riverside 16:28 VR 8/9/1977 Round 13:24 8/10/1977 Old Faithful 7:24 3:31 8/10/1977 Old Faithful 8:40 1:16 2:07 8:34 8/10/1977 Old Faithful 9:27 0:47 4:33 9:30 8/10/1977 Old Faithful 10:42 1:15 1:45 10:42 8/10/1977 Old Faithful 11:50 1:08 3:54 11:32 8/10/1977 Old Faithful 13:02 1:12 2:55 13:02 8/10/1977 Old Faithful 13:56 0:54 3:57 13:59 8/10/1977 Old Faithful 15:14 1:18 1:49 15:08 8/10/1977 Old Faithful 15:58 0:44 4:45 16:01 8/10/1977 Old Faithful 17:17 1:19 1:54 17:14 8/10/1977 Old Faithful 18:26 1:09 4:17 18:07 8/10/1977 Old Faithful 19:43 1:17 ~1:50 19:38 8/10/1977 Old Faithful 20:27 0:44 4:26 20:31 8/10/1977 Old Faithful 21:46 1:19 2:14 21:42 8/10/1977 Old Faithful 22:39 0:53 Long 22:38 8/10/1977 Old Faithful 23:59 1:20 Long 8/10/1977 Beehive 18:59 ie 8/10/1977 Bijou 14:47 8/10/1977 Castle 6:30 8/10/1977 Castle 15:20 VR minor 8/10/1977 Castle 16:52 8/10/1977 Fountain 10:42 8/10/1977 Grand 4:32 4B 8/10/1977 Grand 12:24 3B 8/10/1977 Grand 20:00 3b 8/10/1977 Great Fountain 8:15 VR 8/10/1977 Great Fountain 17:09 8/10/1977 Riverside 10:33 8/10/1977 Riverside 17:05 VR 8/10/1977 Riverside 22:47 8/10/1977 Spiteful 22:30 8/11/1977 Old Faithful 8:11 3:16 8/11/1977 Old Faithful 9:30 1:19 3:14 9:16 8/11/1977 Old Faithful 10:40 1:10 3:42 10:35 8/11/1977 Old Faithful 11:55 1:15 1:57 11:50 8/11/1977 Old Faithful 12:45 0:50 4:15 12:45 8/11/1977 Old Faithful 14:11 1:26 3:34 13:58 8/11/1977 Old Faithful 15:27 1:16 3:52 15:21 8/11/1977 Old Faithful 16:32 1:05 4:12 16:38 8/11/1977 Old Faithful 17:58 1:26 1:40 17:44 8/11/1977 Old Faithful 18:40 0:42 3:45 18:46 8/11/1977 Old Faithful 19:55 1:15 1:57 19:50 8/11/1977 Old Faithful 20:56 1:01 4:57 20:45 8/11/1977 Beehive 18:00 concerted 8/11/1977 Beehive's Indicator 9:16 ie 8/11/2003 Beehive's Indicator 17:30 8/11/1977 Castle 11:44 ie 8/11/1977 Castle 20:47 8/11/1977 Fan and Mortar 22:05 Jamie 8/11/1977 Grand 3:51 8/11/1977 Grand 13:22 8/11/1977 Grand 21:25 8/11/1977 Great Fountain 12:03 8/11/1977 Great Fountain 19:50 8/11/1977 Lone Star 10:55 VR 8/11/1977 Riverside 11:33 8/11/1977 Riverside 17:23 8/11/1977 Riverside 23:05 8/12/1977 Old Faithful 6:42 medium 8/12/1977 Old Faithful 7:53 1:11 4:18 ? 8/12/1977 Old Faithful 9:14 1:21 4:35 9:08 8/12/1977 Old Faithful 10:26 1:12 1:59 10:30 8/12/1977 Old Faithful 11:14 0:48 2:41 11:16 8/12/1977 Old Faithful 12:33 1:19 1:46 12:09 8/12/1977 Old Faithful 13:24 0:51 4:01 13:20 8/12/1977 Old Faithful 14:39 1:15 2:13 14:36 8/12/1977 Old Faithful 15:27 0:48 4:33 15:31 8/12/1977 Old Faithful 16:43 1:16 3:32 16:42 8/12/1977 Old Faithful 18:06 1:23 4:05 17:53 8/12/1977 Old Faithful 19:20 1:14 1:40 19:18 8/12/1977 Old Faithful 20:06 0:46 4:08 20:05 8/12/1977 Old Faithful 21:21 1:15 3:52 21:18 8/12/1977 Artemisia 9:01 Jamie 8/12/1977 Artemisia 17:18 8/12/1977 Beehive 22:15 8/12/1977 Castle 6:23 8/12/1977 Castle 15:16 ie 8/12/1977 Dome 10:30 8/12/1977 Dome 10:45 ie 8/12/1977 Dome 12:46 ie 8/12/1977 Dome 14:03 ie 8/12/1977 Dome 15:45 ie 8/12/1977 Dome 18:25 ie 8/12/1977 Dome 19:08 8/12/1977 Dome 19:35 8/12/1977 Dome 19:55 8/12/1977 Dome 20:23 8/12/1977 Dome 20:50 8/12/1977 Fountain 20:30:00 8/12/1977 Grand 5:16 8/12/1977 Grand 12:19 8/12/1977 Grand 20:11 no eruption Turban 8/12/1977 Great Fountain 16:48 8/12/1977 Lion 9:37 ie 8/12/1977 Lion 19:25 8/12/1977 Lion 20:48 8/12/1977 Lone Star 12:00 8/12/1977 Oblong 9:15 ie 8/12/1977 Riverside 10:57 8/12/1977 Riverside 17:17 8/12/1977 Spiteful 0:22 8/13/1977 Old Faithful 7:25 2-5min 8/13/1977 Old Faithful 8:39 1:14 3:30 08:25? 8/13/1977 Old Faithful 9:52 1:13 3:40 9:49 8/13/1977 Old Faithful 11:02 1:10 3:45 11:02 8/13/1977 Old Faithful 12:06 1:04 4:08 12:12 8/13/1977 Old Faithful 13:23 1:17 3:22 13:18 8/13/1977 Old Faithful 14:36 1:13 4:07 14:31 8/13/1977 Old Faithful 15:44 1:08 3:47 15:48 8/13/1977 Old Faithful 17:03 1:19 4:15 16:54 8/13/1977 Old Faithful 18:12 1:09 3:55 18:26 8/13/1977 Old Faithful 19:22 1:10 3:40 19:24 8/13/1977 Old Faithful 20:42 1:20 2:01 20:32 8/13/1977 Artemisia 7:58 22min dur 8/13/1977 Artemisia 16:58 8/13/1977 Beehive 13:35 ie 8/13/1977 Castle 9:17 8/13/1977 Castle 18:40 VR 8/13/1977 Dome 10:41 8/13/1977 Dome 16:30 8/13/1977 Fountain 19:45 ie ended 19:58 8/13/1977 Grand 4:55 Marie 8/13/1977 Grand 13:31 VR 8/13/1977 Great Fountain 11:05 8/13/1977 Great Fountain 20:45 8/13/1977 Grotto Fountain 11:19 8/13/1977 Lion 10:22 8/13/1977 Rift 8:00 8/13/1977 Riverside 11:05 8/13/1977 Riverside 17:13 VR 8/14/1977 Old Faithful 8:05 3:38 8/14/1977 Old Faithful 9:15 1:10 3:45 9:16 8/14/1977 Old Faithful 10:37 1:22 4:12 10:25 8/14/1977 Old Faithful 11:44 1:07 4:24 11:49 8/14/1977 Old Faithful 13:00 1:16 1:45 13:02 8/14/1977 Old Faithful 14:01 1:01 4:10 13:47 8/14/1977 Old Faithful 15:15 1:14 2:10 15:13 8/14/1977 Old Faithful 16:14 0:59 4:27 16:05 8/14/1977 Old Faithful 17:40 1:26 1:58 17:29 8/14/1977 Old Faithful 18:26 0:46 4:18 18:30 8/14/1977 Old Faithful 19:56 1:30 1:46 19:39 8/14/1977 Old Faithful 20:54 0:58 ~4:02 20:43 8/14/1977 Old Faithful 22:12 1:18 1:43 8/14/1977 Old Faithful 23:04 0:52 4:24 8/14/1977 Artemisia 16:16 8/14/1977 Beehive 18:12 8/14/1977 Castle 12:44 8/14/1977 Castle 21:49 8/14/1977 Castle 22:45notypo 8/14/1977 Dome 15:33 8/14/1977 Dome 19:50 8/14/1977 Grand 5:38 8/14/1977 Grand 13:57 3b 8/14/1977 Grand 21:29 3Bursts 8/14/1977 Great Fountain 8:40 8/14/1977 Great Fountain 17:09 VR 8/14/1977 Lone Star 10:55 VR 22min dur 8/14/1977 Oblong 14:34 8/14/1977 Riverside 10:22 8/14/1977 Riverside 16:01 8/14/1977 Round 15:55 8/15/1977 Old Faithful 7:13:00 8/15/1977 Old Faithful 8:33 1:20 4:15 8:24 8/15/1977 Old Faithful 9:44 1:11 3:37 9:46 8/15/1977 Old Faithful 10:53 1:09 1:59 10:54 8/15/1977 Old Faithful 11:46 0:53 4:12 11:43 8/15/1977 Old Faithful 13:09 1:23 3:57 13:08 8/15/1977 Old Faithful 14:21 1:12 1:49 14:21 8/15/1977 Old Faithful 15:18 0:57 4:41 15:09 8/15/1977 Old Faithful 16:37 1:19 1:51 16:33 8/15/1977 Old Faithful 17:25 0:48 4:15 17:25 8/15/1977 Old Faithful 18:49 1:24 2:01 18:38 8/15/1977 Old Faithful 19:39 0:50 4:30 19:39 8/15/1977 Old Faithful 20:56 1:17 ~3:34 20:54 8/15/1977 Old Faithful 22:13 1:17 ~3:34 22:05 8/15/1977 Old Faithful 23:28 1:15 4:33 8/15/1977 Beehive 9:45 8/15/1977 Beehive's Indicator 9:39 ie 8/15/1977 Castle 6:55 ie 8/15/1977 Castle 15:42 8/15/1977 Grand 4:39 2Bs 8/15/1977 Grand 13:28 8/15/1977 Grand 21:35 3b 8/15/1977 Great Fountain 13:40 8/15/1977 Great Fountain 22:27 ie start +or- 2 min 8/15/1977 Grotto 9:41 8/15/1977 Grotto Fountain 9:37 8/15/1977 Oblong 4:56 8/15/1977 Riverside 9:15 8/15/1977 Riverside 15:22 8/15/1977 Riverside 21:08 8/16/1977 Old Faithful 6:27 ? Long 8/16/1977 Old Faithful 7:37 1:10 4:16 7:40 8/16/1977 Old Faithful 8:50 1:13 2:20 8:50 8/16/1977 Old Faithful 9:38 0:48 4:10 9:42 8/16/1977 Old Faithful 10:57 1:19 2:13 10:50 8/16/1977 Old Faithful 11:58 1:01 4:39 11:49 8/16/1977 Old Faithful 13:12 1:14 2:01 13:13 8/16/1977 Old Faithful 14:08 0:56 4:47 14:02 8/16/1977 Old Faithful 15:33 1:25 4:21 15:24 8/16/1977 Old Faithful 16:44 1:11 1:51 16:47 8/16/1977 Old Faithful 17:43 0:59 4:15 17:32 8/16/1977 Old Faithful 18:51 1:08 4:14 18:56 8/16/1977 Old Faithful 20:04 1:13 2:16 20:04 8/16/1977 Old Faithful 21:09 1:05 ~3:45 20:56 8/16/1977 Old Faithful 22:31 1:22 4:07 22:09 8/16/1977 Artemisia 17:07 8/16/1977 Castle 10:00 ie 8/16/1977 Castle 19:10 8/16/1977 Fan and Mortar 7:56 Jamie 8/16/1977 Grand 5:21 8/16/1977 Grand 12:22 8/16/1977 Grand 20:45 2bursts 8/16/1977 Great Fountain 7:10 8/16/1977 Great Fountain 16:44 8/16/1977 Grotto Fountain 8:52 ie Marie 8/16/1977 Lone Star 13:17 8/16/1977 Riverside 8:28 8/16/1977 Riverside 14:17 8/16/1977 Riverside 20:01 8/16/1977 Spiteful 5:45 Jamie 8/16/1977 Spiteful 10:28 8/16/1977 Spiteful 10:31notypo 8/16/1977 Spiteful 11:12 8/16/1977 Spiteful 20:01 2h45m ovfl 8/17/1977 Old Faithful 7:30 ~4:00 8/17/1977 Old Faithful 8:50 1:20 ~4:30 8:42 8/17/1977 Old Faithful 10:03 1:13 3:57 10:05 8/17/1977 Old Faithful 11:23 1:20 3:58 11:15 8/17/1977 Old Faithful 12:38 1:15 4:07 12:35(1228Railey 8/17/1977 Old Faithful 13:54 1:16 4:30 13:50 8/17/1977 Old Faithful 15:12 1:18 4:00 15:09 8/17/1977 Old Faithful 16:17 1:05 4:20 16:24 8/17/1977 Old Faithful 17:42 1:25 4:00 17:30 8/17/1977 Old Faithful 18:58 1:16 4:18 18:54 8/17/1977 Old Faithful 20:08 1:10 1:57 20:13 8/17/1977 Old Faithful 21:01 0:53 ~4:26 20:58 8/17/1977 Beehive 1:45 8/17/1977 Beehive 13:15 8/17/1977 Beehive's Indicator 13:02 8/17/1977 Castle 4:33 8/17/1977 Castle 13:50 ie 8/17/1977 Grand 4:41 2Bs 8/17/1977 Grand 12:12 8/17/1977 Grand 20:05 8/17/1977 Great Fountain 10:49 ie Ron Deat 8/17/1977 Great Fountain 19:10 VR 8/17/1977 Mortar 13:41 to13:45minor5' 8/17/1977 Oblong 3:54 8/17/1977 Riverside 8:05 8/17/1977 Riverside 14:11 8/17/1977 Riverside 20:38 8/17/1977 Spa 15:10 8/17/1977 Spiteful 13:38 "to13:44,major,20ft,Jamie" 8/17/1977 Uncertain 19:30 8/18/1977 Old Faithful 6:47 ~3:30 8/18/1977 Old Faithful 8:05 1:18 4:04 7:57 8/18/1977 Old Faithful 9:18 1:13 4:24 9:18 8/18/1977 Old Faithful 10:38 1:20 4:09 10:32 8/18/1977 Old Faithful 11:59 1:21 2:06 11:49 8/18/1977 Old Faithful 12:46 0:47 4:12 12:50 8/18/1977 Old Faithful 14:14 1:28 2:16 13:59 8/18/1977 Old Faithful 15:09 0:55 4:20 15:06 8/18/1977 Old Faithful 16:21 1:12 2:23 16:24 8/18/1977 Old Faithful 17:21 1:00 4:07 17:14 8/18/1977 Old Faithful 18:46 1:25 4:00 18:32 8/18/1977 Old Faithful 20:00 1:14 4:21 19:58 8/18/1977 Aurum 8:24 8/18/1977 Beehive 15:33 8/18/1977 Castle 8:23 ie 8/18/1977 Castle 17:44 ie 8/18/1977 Depression 10:00 8/18/1977 Grand 4:20 8/18/1977 Grand 12:44 3burst 8/18/1977 Great Fountain 5:23 ie 8/18/1977 Great Fountain 14:43 8/18/1977 Oblong 20:10??? 8/18/1977 Riverside 14:18 8/18/1977 Riverside 20:03 8/18/1977 UNNG near Pocket Basin 13:45 to 25ft 8/19/1977 Old Faithful 8:07 2:51 8/19/1977 Old Faithful 9:09 1:02 ~4:30 9:04 8/19/1977 Old Faithful 10:33 1:24 2:13 10:24 8/19/1977 Old Faithful 11:28 0:55 4:18 11:25 8/19/1977 Old Faithful 12:56 1:28 1:47 12:41 8/19/1977 Old Faithful 13:36 0:40 4:00 13:43 8/19/1977 Old Faithful 15:01 1:25 3:40 14:48 8/19/1977 Old Faithful 16:12 1:11 1:43 16:11 8/19/1977 Old Faithful 17:11 0:59 4:25 16:57 8/19/1977 Old Faithful 18:24 1:13 2:23 18:25 8/19/1977 Old Faithful 19:14 0:50 4:16 19:18 8/19/1977 Old Faithful 20:28 1:14 4:07 20:26 8/19/1977 Beehive 10:54 8/19/1977 Beehive 21:40 4:07dur 8/19/1977 Castle 11:46 8/19/1977 Castle 20:44 8/19/1977 Fountain 15:20 ie 8/19/1977 Grand 0:19 "1B,12:19AM" 8/19/1977 Grand 8:04 8/19/1977 Grand 14:35 4B 8/19/1977 Grand 22:32 3B 8/19/1977 Great Fountain 9:47 8/19/1977 Great Fountain 18:08 8/19/1977 Grotto Fountain 9:37 8/19/1977 Lion ~11:15 VR 8/19/1977 Lion 12:31 8/19/1977 Plume 8:35 8/19/1977 Riverside 8:53 8/19/1977 Riverside 15:05 8/19/1977 Riverside 20:57 8/20/1977 Old Faithful 7:35 4:19 8/20/1977 Old Faithful 8:50 1:15 4:03 8:49 8/20/1977 Old Faithful 10:00 1:10 2:15 10:02 8/20/1977 Old Faithful 10:52 0:52 3:58 10:52 8/20/1977 Old Faithful 12:12 1:20 3:49 12:01 8/20/1977 Old Faithful 13:24 1:12 4:40 13:22 8/20/1977 Old Faithful 14:42 1:18 3:30 14:40 8/20/1977 Old Faithful 15:47 1:05 4:20 15:52 8/20/1977 Old Faithful 17:16 1:29 3:31 17:00 8/20/1977 Old Faithful 18:21 1:05 4:00 18:26 8/20/1977 Old Faithful 19:38 1:17 1:57 19:33 8/20/1977 Old Faithful 20:30 0:52 4:14 20:28 8/20/1977 Beehive 12:15 8/20/1977 Castle 5:41 8/20/1977 Castle 15:36 8/20/1977 Depression 8:46 ie 8/20/1977 Grand 6:09 2b 8/20/1977 Grand 13:45 8/20/1977 Grand 21:12 8/20/1977 Great Fountain 12:57 8/20/1977 Riverside 9:31 8/20/1977 Riverside 15:10 VR 8/20/1977 Riverside 20:40 8/21/1977 Old Faithful 7:44 ie 8/21/1977 Old Faithful 8:29 0:45 3:49 ? 8/21/1977 Old Faithful 9:42 1:13 2:10 9:39 8/21/1977 Old Faithful 10:47 1:05 4:36 180'high 10:32 8/21/1977 Old Faithful 12:02 1:15 3:53 12:02 8/21/1977 Old Faithful 13:19 1:17 2:00 13:12 8/21/1977 Old Faithful 14:08 0:49 4:30 14:09 8/21/1977 Old Faithful 15:37 1:29 3:39 15:23 8/21/1977 Old Faithful 16:46 1:09 4:16 16:47 8/21/1977 Old Faithful 18:10 1:24 1:43 17:59 8/21/1977 Old Faithful 18:56 0:46 3:53 18:57 8/21/1977 Old Faithful 20:12 1:16 4:18 20:06 8/21/1977 Beehive 12:04 8/21/1977 Castle 9:27 minor 2.5min 8/21/1977 Castle 13:02 8/21/1977 Fan and Mortar 18:18 8/21/1977 Grand 5:22 8/21/1977 Grand 12:58 8/21/1977 Great Fountain 15:20 8/21/1977 Lion 15:28 8/21/1977 Lion 18:35 8/21/1977 Riverside 8:36 8/21/1977 Riverside 14:09 VR 8/22/1977 Old Faithful 8:15 2:30 8/22/1977 Old Faithful 9:13 0:58 4:06 9:10 8/22/1977 Old Faithful 10:37 1:24 1:48 10:25 8/22/1977 Old Faithful 11:22 0:45 4:00 11:26 8/22/1977 Old Faithful 12:46 1:24 2:03 12:34 8/22/1977 Old Faithful 13:34 0:48 4:28 13:36 8/22/1977 Old Faithful 15:00 1:26 1:51 14:49 8/22/1977 Old Faithful 15:47 0:47 4:30 15:48 8/22/1977 Old Faithful 17:11 1:24 1:45 17:02 8/22/1977 Old Faithful 17:56 0:45 4:20 17:58 8/22/1977 Old Faithful 19:19 1:23 3:44 19:10 8/22/1977 Old Faithful 20:37 1:18 3:24 20:29 8/22/1977 Beehive 13:35 8/22/1977 Castle 8:09 7min minor 8/22/1977 Castle 11:04 2min minor 8/22/1977 Castle 14:10 VR 14:20ie 8/22/1977 Depression 14:40 ie 8/22/1977 Dome 18:36 ie Active 8/22/1977 Grand 6:15 8/22/1977 Grand 14:33 2B 8/22/1977 Grand 22:47 8/22/1977 Great Fountain 11:04 8/22/1977 Great Fountain 20:04 8/22/1977 Oblong 15:05 ie 8/22/1977 Penta 19:15 VR 35'-40' 8/22/1977 Rift 5:24 8/22/1977 Rift 7:50 ie 8/22/1977 Rift 9:10 grr 8/22/1977 Riverside 7:46 8/22/1977 Riverside 13:20 8/22/1977 Riverside 19:35 for 17 min 8/22/1977 Round 20:02 8/23/1977 Old Faithful 6:31 8/23/1977 Old Faithful 7:42 1:11 ~3:38 7:40 8/23/1977 Old Faithful 8:52 1:10 1:49 8:52 8/23/1977 Old Faithful 9:47 0:55 4:25 9:40 8/23/1977 Old Faithful 11:03 1:16 4:11 11:02 8/23/1977 Old Faithful 12:17 1:14 1:59 12:16 8/23/1977 Old Faithful 13:10 0:53 4:41 13:07 8/23/1977 Old Faithful 14:36 1:26 2:17 14:27 8/23/1977 Old Faithful 15:28 0:52 4:12 15:28 8/23/1977 Old Faithful 16:47 1:19 1:57 16:40 8/23/1977 Old Faithful 17:34 0:47 4 1/2 17:37 8/23/1977 Old Faithful 19:03 1:29 4:01 18:50 8/23/1977 Old Faithful 20:08 1:05 4:03 20:15 8/23/1977 Beehive 9:21 8/23/1977 Beehive 21:03 8/23/1977 Castle 1:00 VR 8/23/1977 Castle 8:30 2.5min minor 8/23/1977 Castle 9:38 minor 8/23/1977 Castle 9:45 major 8/23/1977 Castle 19:05 8/23/1977 Dome 10:01 ie 8/23/1977 Dome 12:31 ie 8/23/1977 Dome 4:33notypo ie 8/23/1977 Dome 18:34 ie 8/23/1977 Fan and Mortar 14:25 VR 12min dur 8/23/1977 Grand 7:08 8/23/1977 Grand 15:09 "John,1B,10m46s" 8/23/1977 Grand 15:16 8/23/1977 Grand 23:37 3Bs 8/23/1977 Great Fountain 5:10 ie 8/23/1977 Great Fountain 13:30 8/23/1977 Grotto Fountain 15:25 ie 8/23/1977 Oblong 15:30 8/23/1977 Riverside 7:18 8/23/1977 Riverside 19:10 8/23/1977 Round 8:50 8/23/1977 White Dome had two 1h5m intervals 8/24/1977 Old Faithful 07:?? ? 8/24/1977 Old Faithful 8:08 4:08 8/24/1977 Old Faithful 9:25 1:17 2:21 9:20 8/24/1977 Old Faithful 10:19 0:54 4:27 10:17 8/24/1977 Old Faithful 11:40 1:21 2:00 11:39 8/24/1977 Old Faithful 12:28 0:48 4:34 12:35 8/24/1977 Old Faithful 13:50 1:22 3:41 13:43 8/24/1977 Old Faithful 15:03 1:13 4:01 15:00 8/24/1977 Old Faithful 16:11 1:08 3:52 16:15 8/24/1977 Old Faithful 17:21 1:10 3:42 17:23 8/24/1977 Old Faithful 18:29 1:08 4:04 18:32 8/24/1977 Old Faithful 19:42 1:13 3:57 19:41 8/24/1977 Old Faithful 20:55 1:13 4:08 20:54 8/24/1977 Artemisia 8:19 to 08:38Jamie 8/24/1977 Beehive 11:06 8/24/1977 Beehive 20:50 8/24/1977 Castle 12:50 8/24/1977 Dome 8:30 ie 8/24/1977 Dome 19:31 ie etc. 8/24/1977 Grand 6:56 4bursts 8/24/1977 Grand 14:13 3Bursts 8/24/1977 Grand 22:38 8/24/1977 Great Fountain 15:00 VR 8/24/1977 Lion 9:10 8/24/1977 Riverside 7:31 8/24/1977 Riverside 13:49 VR "21min,ok JRR" 8/24/1977 Riverside 19:04 VR 27min 8/25/1977 Old Faithful 8:33 2:16 8/25/1977 Old Faithful 9:30:00 0:57 4:40 9:23 8/25/1977 Old Faithful 10:52 1:22 1:46 10:46 8/25/1977 Old Faithful 11:47 0:55 4:54 11:39 8/25/1977 Old Faithful 13:04 1:17 2:02 13:03 8/25/1977 Old Faithful 14:05 1:01 4:16 13:54 8/25/1977 Old Faithful 15:19 1:14 3:25 15:18 8/25/1977 Old Faithful 16:29 1:10 3:33 16:29 8/25/1977 Old Faithful 19:37notypo 1:08 2:03 17:39 8/25/1977 Old Faithful 18:25 0:48 4:18 18:28 8/25/1977 Old Faithful 19:40 1:15 2:08 19:44 8/25/1977 Old Faithful 20:44 1:04 3:26 20:30 8/25/1977 Aurum 9:34 8/25/1977 Beehive 11:45 8/25/1977 Castle 6:55 ie 8/25/1977 Castle 16:04 8/25/1977 Depression 9:38 8/25/1977 Grand 5:10 VR 3b 8/25/1977 Grand 13:35 3B 8/25/1977 Great Fountain 12:45 VR 8/25/1977 Great Fountain 22:11 VR 8/25/1977 Oblong 11:10 8/25/1977 Riverside 6:30 8/25/1977 Riverside 11:45 8/25/1977 Riverside 17:27 8/26/1977 Old Faithful 7:30 ie ? 8/26/1977 Old Faithful 8:53 1:23 4:06 08:40? 8/26/1977 Old Faithful 10:09 1:16 4:17 10:05 8/26/1977 Old Faithful 11:34 1:25 ~3:30 11:22 8/26/1977 Old Faithful 12:52 1:18 ~3:50 12:45maybe 8/26/1977 Old Faithful 14:06 1:14 4:00 14:02 8/26/1977 Old Faithful 15:17 1:11 3:20 15:16 8/26/1977 Old Faithful 16:36 1:19 4:47 16:24 8/26/1977 Old Faithful 17:44 1:08 4:00 17:19 8/26/1977 Old Faithful 19:04 1:20 4:21 18:56 8/26/1977 Old Faithful 20:18 1:14 3:36 20:17 8/26/1977 Castle 10:20 ie 8/26/1977 Castle 19:15 8/26/1977 Giantess 10:30 in steam~12:00 8/26/1977 Grand 11:15 8/26/1977 Grand ~18:30 8/26/1977 Riverside 10:13 8/26/1977 Riverside 15:51 VR 8/26/1977 Round 11:13 8/27/1977 Old Faithful 8:08 ~4:30 8/27/1977 Old Faithful 9:24 1:16 3:39 9:23 8/27/1977 Old Faithful 10:37 1:13 1:58 10:30 8/27/1977 Old Faithful 11:25 0:48 ~4:00 11:24 8/27/1977 Old Faithful 12:54 1:29 1:48 12:37 8/27/1977 Old Faithful 13:42 0:48 4:15 13:41 8/27/1977 Old Faithful 15:05 1:23 4:02 14:55 8/27/1977 Old Faithful 16:18 1:13 4:55 16:17 8/27/1977 Old Faithful 17:35 1:17 2:08 17:35 8/27/1977 Old Faithful 18:26 0:51 4:47 18:26 8/27/1977 Old Faithful 19:40 1:14 2:06 19:42 8/27/1977 Old Faithful 20:36 0:56 4:41 20:30 8/27/1977 Old Faithful 21:52 1:16 4:04 8/27/1977 Old Faithful 23:02 1:10 short 8/27/1977 Aurum 11:11 d=22s ~2300 300lb Grizz &coyote in Gov area 8/27/1977 Beehive 18:30 8/27/1977 Castle 13:40 ie 8/27/1977 Castle 22:16 8/27/1977 Fan and Mortar ~14:40 VR 8/27/1977 Fountain 0:30 8/27/1977 Fountain 16:00 8/27/1977 Giantess 8:06 water phase 8/27/1977 Giantess 10:49 8/27/1977 Giantess 11:35 d=7m46s 8/27/1977 Giantess 12:25 ie 8/27/1977 Giantess 15:35 8/27/1977 Grand 11:00 2bursts 8/27/1977 Grand 22:16 ie last burst 8/27/1977 Great Fountain 10:35 8/27/1977 Great Fountain 19:19 VR 8/27/1977 Rift 17:36 8/27/1977 Riverside 3:44 8/27/1977 Riverside 9:25 8/27/1977 Riverside 15:34 8/27/1977 Riverside 21:51 8/27/1977 Round 15:06 8/28/1977 Old Faithful 8:00 3:45 30'high only 8/28/1977 Old Faithful 9:24 1:24 4:08 9:10 8/28/1977 Old Faithful 10:38 1:14 4:00 10:37 8/28/1977 Old Faithful 11:47 1:09 3:51 11:50 8/28/1977 Old Faithful 13:00 1:13 4:04 12:58 8/28/1977 Old Faithful 14:12 1:12 2:20? 14:12 8/28/1977 Old Faithful 14:57 0:45 4:20 15:05 8/28/1977 Old Faithful 16:26 1:29 1:47 16:11 8/28/1977 Old Faithful 17:09 0:43 4:18 17:13 8/28/1977 Old Faithful 18:23 1:14 1:53 18:23 8/28/1977 Old Faithful 19:14 0:51 4:30 19:12 8/28/1977 Old Faithful 20:39 1:25 1:44 20:28 8/28/1977 Old Faithful 21:40 1:01 4:26 21:28 8/28/1977 Old Faithful 22:59 1:19 8/28/1977 Beehive 17:00 8/28/1977 Castle 7:30 ie 8/28/1977 Castle 16:55 8/28/1977 Grand 14:20 ie 8/28/1977 Grand 22:17 8/28/1977 Great Fountain 16:07 8/28/1977 Grotto Fountain 14:25 ie 8/28/1977 Oblong 17:04 8/28/1977 Riverside 4:19 8/28/1977 Riverside 9:58 8/28/1977 Riverside 15:28 8/28/1977 Riverside 21:51 8/28/1977 Round 20:03 ie 8/28/1977 South Grotto Fountain 14:25 ie 8/29/1977 Old Faithful 9:14 8/29/1977 Old Faithful 10:30 1:16 2:03 10:26 8/29/1977 Old Faithful 11:24 0:54 3:43 11:20 8/29/1977 Old Faithful 12:36 1:12 2:15 12:34 8/29/1977 Old Faithful 13:28 0:52 4:43 13:28 8/29/1977 Old Faithful 14:45 1:17 3:35 14:44 8/29/1977 Old Faithful 16:00 1:15 2:00 15:55 8/29/1977 Old Faithful 16:59 0:59 4:40 16:50 8/29/1977 Old Faithful 18:20 1:21 2:10 18:14 8/29/1977 Old Faithful 19:07 0:47 4:37 19:12 8/29/1977 Old Faithful 20:35 1:28 3:39 20:22 8/29/1977 Old Faithful 21:55 1:20 21:45 8/29/1977 Beehive 23:55 8/29/1977 Castle 11:23 8/29/1977 Castle 20:21? unclear 8/29/1977 Fountain 19:10 8/29/1977 Grand 5:24 8/29/1977 Great Fountain 18:45 8/29/1977 Lion 9:43 8/29/1977 Lion 15:52 ie 8/29/1977 Lion 16:46 8/29/1977 Lion 18:00 8/29/1977 Oblong 6:17 8/29/1977 Riverside 4:05 8/29/1977 Riverside 10:20 8/29/1977 Riverside 16:29 16:30 was corrected 8/29/1977 Riverside 22:35 8/30/1977 Old Faithful 7:52 1:56 8/30/1977 Old Faithful 8:40 0:48 long? 8:40 8/30/1977 Old Faithful 9:54 1:14 3:30 9:55 8/30/1977 Old Faithful 11:02 1:08 3:54 10:50 8/30/1977 Old Faithful 12:40 1:38 1:53 12:14 8/30/1977 Old Faithful 13:20 0:40 4:40 13:30 8/30/1977 Old Faithful 14:38 1:18 4:20 14:35 8/30/1977 Old Faithful 16:06 1:28 4:13 15:48 8/30/1977 Old Faithful 17:16 1:10 3:35 17:19 8/30/1977 Old Faithful 18:25 1:09 2:30 30'max! 18:26 8/30/1977 Old Faithful 19:44 1:19 4:50 19:15notypo 8/30/1977 Old Faithful 21:02 1:18 3:45 21:00 8/30/1977 Old Faithful 22:13 1:11 2:50 22:12 8/30/1977 Old Faithful 23:16 1:03 ~4:40long 8/30/1977 Beehive 15:52 ie 8/30/1977 Castle 15:08 8/30/1977 Grand 5:23 3B 8/30/1977 Grand 14:13 8/30/1977 Grand 22:30 2b 8/30/1977 Great Fountain 16:15 8/30/1977 Riverside 4:44 8/30/1977 Riverside 11:00 8/30/1977 Riverside 17:15 17:25ie VR 8/31/1977 Old Faithful 6:46 ~3:14 8/31/1977 Old Faithful 8:01 1:15 2:22 7:50 8/31/1977 Old Faithful 8:57 0:56 ~3:05 8:54 8/31/1977 Old Faithful 10:20 1:23 3:36 10:10 8/31/1977 Old Faithful 11:32 1:12 4:14 11:30 8/31/1977 Old Faithful 12:49 1:17 1:45 12:44 8/31/1977 Old Faithful 13:38 0:49 4:45 13:36 8/31/1977 Old Faithful 15:01 1:23 2:30 14:54 8/31/1977 Old Faithful 15:50 0:49 4:49 15:56 8/31/1977 Old Faithful 17:17 1:27 3:57 17:06 8/31/1977 Old Faithful 18:20 1:03 ~4:00 18:27 8/31/1977 Old Faithful 19:40 1:20 2:30 19:32 8/31/1977 Old Faithful 20:40 1:00 4:53 20:33 8/31/1977 Old Faithful 21:58 1:18 2:05 21:56 8/31/1977 Old Faithful 22:47 0:49 4:34 22:-- 8/31/1977 Beehive 13:18 8/31/1977 Castle 9:30 ie 8/31/1977 Castle 18:25 ie 8/31/1977 Castle 18:58notypo 8/31/1977 Depression 17:40 8/31/1977 Depression 23:06 8/31/1977 Grand 6:46 2b 8/31/1977 Grand 15:01 2b 8/31/1977 Grand 22:39 3b 8/31/1977 Great Fountain 12:40 8/31/1977 Great Fountain 20:40 VR 8/31/1977 Lion 15:20 8/31/1977 Rift 22:30 still ie 24:20 8/31/1977 Riverside 5:01 8/31/1977 Riverside 11:15 8/31/1977 Riverside 16:49 8/31/1977 West Flood 14:25 8/31/1977 White Dome 11:42 8/31/1977 White Dome 12:48 9/1/1977 Old Faithful 0:01 1:14 4:14 9/1/1977 Old Faithful 7:22 ~4:00 9/1/1977 Old Faithful 8:35 1:13 ~2:00 8:34 9/1/1977 Old Faithful 9:35 1:00 4:23 9:25 9/1/1977 Old Faithful 10:56 1:21 4:06 10:49 9/1/1977 Old Faithful 12:12 1:16 2:00 12:08 9/1/1977 Old Faithful 13:07 0:55 4:25 13:02 9/1/1977 Old Faithful 14:36 1:29 2:02 14:22 9/1/1977 Old Faithful 15:38 1:02 4:19 15:26 9/1/1977 Old Faithful 17:01 1:23 1:49 16:51 9/1/1977 Old Faithful 17:45 0:44 3:49 17:51 9/1/1977 Old Faithful 19:07 1:22 2:10 18:55 9/1/1977 Old Faithful 20:13 1:06 4:00 19:57 9/1/1977 Old Faithful 21:37:00 1:24 1:36 12m40s 21:25 9/1/1977 Old Faithful 22:30:00 0:53 3:24 1642notypo 9/1/1977 Beehive 9:25:00 9/1/1977 Castle 3:20:00 ie water 9/1/1977 Castle 14:35 9/1/1977 Castle 24:01notypo 9/1/1977 Grand 7:00 VR 07:10ie 9/1/1977 Grand 14:19 9/1/1977 Grand 22:09 2B 9/1/1977 Great Fountain full and ovfl at05:45 9/1/1977 Great Fountain 16:20 9/1/1977 Riverside 10:20 9/1/1977 Riverside 15:54 9/1/1977 Riverside 21:33 9/1/1977 Round 19:02 9/2/1977 Old Faithful 0:01 1:30 4:08 2017notypo 9/2/1977 Old Faithful ~07:20 ~3:00 9/2/1977 Old Faithful 8:30 ~1:10 3:35 8:20 9/2/1977 Old Faithful 9:49 1:19 4:20 9:40 9/2/1977 Old Faithful 11:05 1:16 1:56 11:04 9/2/1977 Old Faithful 12:01 0:56 4:18 11:55 9/2/1977 Old Faithful 13:13 1:12 2:00 13:14 9/2/1977 Old Faithful 14:13:00 1:00 4:25 14:03 9/2/1977 Old Faithful 15:30 1:17 2:00 15:27 9/2/1977 Old Faithful 16:21 0:51 4:16 16:20 9/2/1977 Old Faithful 17:38 1:17 1:57 17:34 9/2/1977 Old Faithful 18:29 0:51 4:26 18:27 9/2/1977 Old Faithful 19:46:00 1:17 3:44 18.21notypo 19:43 9/2/1977 Beehive 14:07 9/2/1977 Castle 12:33 9/2/1977 Castle 22:16 9/2/1977 Fan and Mortar 17:55 VR 9/2/1977 Grand 6:40 2B 9/2/1977 Grand 15:17 2B 9/2/1977 Grand 21:44:00 3b 9/2/1977 Great Fountain 12:08:00 9/2/1977 Great Fountain 20:15 ie 9/2/1977 Lion 10:20 9/2/1977 Lion 11:02 VR 9/2/1977 Lion 12:01 9/2/1977 Lion 14:23 9/2/1977 Lion 16:09 9/2/1977 Lion 17:38 9/2/1977 Lion 19:20:00 9/2/1977 Mortar 16:03:00 VR 4' ie 9/2/1977 Oblong 13:44 9/2/1977 Riverside 3:12:00 9/2/1977 Riverside 9:25 9/2/1977 Riverside 15:43 9/2/1977 Riverside 21:53 9/2/1977 Spiteful 16:03 ieVR 9/3/1977 Old Faithful 0:38 RaileybyDickrson 9/3/1977 Old Faithful 6:13 4:48 9/3/1977 Old Faithful 7:32 1:19 4:01 9/3/1977 Old Faithful 8:42:00 1:10 4:00 8:44 9/3/1977 Old Faithful 9:53:00 1:11 4:15 9:54 9/3/1977 Old Faithful 11:07 1:14 3:37 11:06 9/3/1977 Old Faithful 12:14 1:07 3:48 12:16 9/3/1977 Old Faithful 13:26 1:12 4:00 13:18 9/3/1977 Old Faithful 14:52 1:26 3:54 14:38 9/3/1977 Old Faithful 16:12 1:20 2:09 1559 16:03 9/3/1977 Old Faithful 17:01 0:49 4:10 17:03 9/3/1977 Old Faithful 18:27 1:26 1:44 18:13 9/3/1977 Old Faithful 19:15 0:48 4:18 19:14 9/3/1977 Old Faithful ? 20:29 9/3/1977 Old Faithful 21:39 3:45 9/3/1977 Beehive 0:32 JRaileybyDickerson 9/3/1977 Beehive 13:25 9/3/1977 Castle 7:20 9/3/1977 Castle 16:25 9/3/1977 Grand 5:16 4B 9/3/1977 Grand 13:15 4B 9/3/1977 Grand 21:25 3B 9/3/1977 Riverside 4:11 9/3/1977 Riverside 10:29 9/3/1977 Riverside 16:42 9/4/1977 Old Faithful 7:10 Long 9/4/1977 Old Faithful 8:09 0:59 ~3:45 8:20 9/4/1977 Old Faithful 9:24 1:15 2:00 9:19 9/4/1977 Old Faithful 10:09 0:45 4:03 10:14 9/4/1977 Old Faithful 11:34 1:25 2:00 11:21 9/4/1977 Old Faithful 12:21 0:47 4:11(4:43) 12:24 9/4/1977 Old Faithful 13:49 1:28 1:49 13:34 9/4/1977 Old Faithful 14:44 0:55 4:17 14:36 9/4/1977 Old Faithful 16:10 1:26 2:09 15:57 9/4/1977 Old Faithful 16:51 0:41 4:06 17:01 9/4/1977 Old Faithful 18:14:00 1:23 1:53 18:03 9/4/1977 Old Faithful 19:05 0:51 4:15 19:02 9/4/1977 Old Faithful 20:25 1:20 2:08 20:18 9/4/1977 Beehive 1:14 9/4/1977 Beehive 15:15 9/4/1977 Castle 11:25 9/4/1977 Castle 19:55 ie 9/4/1977 Grand 6:30 2B 9/4/1977 Grand 14:13 2B 9/4/1977 Grand 22:35 9/4/1977 Great Fountain 11:40 VR 9/4/1977 Great Fountain 21:31 VR 9/4/1977 Mortar 8:14:00 9/4/1977 Oblong 14:13 9/4/1977 Riverside 10:43 9/4/1977 Riverside 17:05 9/4/1977 Riverside 23:18 9/4/1977 Spiteful 8:13 ie 9/5/1977 Old Faithful 8:16 3:50 9/5/1977 Old Faithful 9:25 1:09:00 4:00 9:26 9/5/1977 Old Faithful 10:41 1:16:00 4:06 10:37 9/5/1977 Old Faithful 11:54 1:13:00 4:06 11:53 9/5/1977 Old Faithful 13:20 1:26:00 3:57 13:06 9/5/1977 Old Faithful 14:33 1:13:00 4:10 14:32 9/5/1977 Old Faithful 15:44 1:11:00 3:57 15:45 9/5/1977 Old Faithful 17:01 1:17:00 3:36 16:56 9/5/1977 Old Faithful 18:13 1:12:00 4:12 18:12 9/5/1977 Old Faithful 19:25 1:12:00 3:45 19:25 9/5/1977 Old Faithful 20:39 1:14:00 3:36 20:35 9/5/1977 Old Faithful 21:51:00 1:12:00 3:46 21:49 9/5/1977 Old Faithful 23:07 1:16:00 4:18 23:01 9/5/1977 Beehive 8:50 VR 9/5/1977 Beehive 19:25 concerted 9/5/1977 Castle 5:26 9/5/1977 Castle ~15:30 9/5/1977 Depression 18:59 9/5/1977 Fan and Mortar 9:55 9/5/1977 Grand 6:38:00 4B 9/5/1977 Grand 14:25 9/5/1977 Grand 21:36 2b 9/5/1977 Great Fountain 8:15 VR 9/5/1977 Great Fountain 17:09:00 "P=7m01,67m ovfl" 9/5/1977 Riverside 4:54 9/5/1977 Riverside 10:29 9/5/1977 Riverside 16:45:00 9/5/1977 Riverside 22:52:00 9/6/1977 Old Faithful 0:35 4:24 9/6/1977 Old Faithful 1:58 1:23 4:22 9/6/1977 Old Faithful 7:46 3:50 9/6/1977 Old Faithful 8:55 1:09 ~3:00 by sound only 8:56 9/6/1977 Old Faithful 10:12 1:17 3:43 9:52 9/6/1977 Old Faithful 11:23 1:11 3:53 11:22 9/6/1977 Old Faithful 12:39 1:16 4:00 12:34 9/6/1977 Old Faithful 13:54 1:15 1:54 13:50 9/6/1977 Old Faithful 14:41:00 0:47 4:35 14:43 9/6/1977 Old Faithful 16:07:00 1:26 2:00 15:58 9/6/1977 Old Faithful 17:02:00 0:55 4:43 16:57 9/6/1977 Old Faithful 18:24:00 1:22 2:01 18:14 9/6/1977 Old Faithful 19:16 0:52 4:18 19:14 9/6/1977 Old Faithful 20:30 1:14 3:41 20:29 9/6/1977 Old Faithful 21:38 1:08 ? 9/6/1977 Old Faithful 22:46 1:08 3:16 9/6/1977 Beehive 11:48 9/6/1977 Bijou 13:45 9/6/1977 Castle 9:42:00 minor 2.5min 9/6/1977 Castle 11:25 9/6/1977 Grand 5:16:00 3B 9/6/1977 Grand 13:24 9/6/1977 Grand 22:17 9/6/1977 Great Fountain 3:39 9/6/1977 Great Fountain 13:51 9/6/1977 Great Fountain 23:19 9/6/1977 Grotto 16:00 VR 9/6/1977 Lion 8:10 9/6/1977 Lion 22:10 9/6/1977 Oblong 13:07 9/6/1977 Riverside 5:12:00 9/6/1977 Riverside 10:53 9/6/1977 Riverside 16:22 9/6/1977 Riverside 22:39 9/6/1977 Spiteful 9:52 ie 9/7/1977 Old Faithful 6:59 Long 9/7/1977 Old Faithful 8:14 1:15 3:39 8:10 9/7/1977 Old Faithful 9:24 1:10 3:24 9:24 9/7/1977 Old Faithful 10:38 1:14 3:42 10:26 9/7/1977 Old Faithful 11:48 1:10 3:50 11:48 9/7/1977 Old Faithful 13:00 1:12 2:03 12:58 9/7/1977 Old Faithful 13:52 0:52 4:30 13:50 9/7/1977 Old Faithful 15:06 1:14 3:25 15:07 9/7/1977 Old Faithful 16:21 1:15 4:00 16:14 9/7/1977 Old Faithful 17:33 1:12 3:10 17:33 9/7/1977 Old Faithful 18:44 1:11 2:05 18:43 9/7/1977 Old Faithful 19:33 0:49 4:03 19:34 9/7/1977 Old Faithful 20:54 1:21 3:52 20:45 9/7/1977 Old Faithful 22:05 1:11 2:40 23:02 9/7/1977 Old Faithful 22:57 0:52 4:39 0:13 9/7/1977 Beehive 12:35 9/7/1977 Castle 5:52 9/7/1977 Castle 15:32:00 9/7/1977 Dome ~18:24 9/7/1977 Grand 6:52 2burst 9/7/1977 Grand 16:13:00 9/7/1977 Grand 22:53:00 4Bursts 9/7/1977 Great Fountain 9:14 9/7/1977 Great Fountain 18:20:00 9/7/1977 Rift 4:00 ie 9/7/1977 Riverside 4:20:00 9/7/1977 Riverside 9:56 9/7/1977 Riverside 15:28 9/7/1977 Riverside 21:32 9/7/1977 Round 13:49 9/8/1977 Old Faithful 0:16 1:19:00 0:13 9/8/1977 Old Faithful 7:09 4:30 9/8/1977 Old Faithful 8:26 1:17 3:32 8:24 9/8/1977 Old Faithful 9:44 1:18 4:13 9:36 9/8/1977 Old Faithful 10:57 1:13 4:00 10:57 9/8/1977 Old Faithful 12:22 1:25 "1:55,1:59" 12:09 9/8/1977 Old Faithful 13:12 0:50 3:20 13:12 9/8/1977 Old Faithful 14:26 1:14 3:45 14:15 9/8/1977 Old Faithful 15:36 1:10 4:12 15:36 9/8/1977 Old Faithful 16:51 1:15 1:58 16:49 9/8/1977 Old Faithful 17:50 0:59 4:34 17:41 9/8/1977 Old Faithful 19:09 1:19 1:37 19:05 9/8/1977 Old Faithful 19:55 0:46 4:40 19:56 9/8/1977 Old Faithful 21:08 1:13 1:44 21:11 9/8/1977 Old Faithful 21:53 0:45 4:10:00 21:55 9/8/1977 Old Faithful 23:07 1:14 3:55 9/8/1977 Beehive 16:36 9/8/1977 Beehive's Indicator 16:20:00 9/8/1977 Castle 9:20 ie 9/8/1977 Castle 19:02 9/8/1977 Depression 15:15 9/8/1977 Dome 15:30 9/8/1977 Dome 16:08 9/8/1977 Dome 18:05 9/8/1977 Dome 19:25 9/8/1977 Dome 19:43 9/8/1977 Fan and Mortar 1:46 ie 9/8/1977 Grand 6:49 2B 9/8/1977 Grand 14:55:00 3B 9/8/1977 Grand 22:38:00 2B 9/8/1977 Great Fountain 11:01:00 9/8/1977 Great Fountain 19:49 9/8/1977 Oblong 8:00 9/8/1977 Riverside 3:44 9/8/1977 Riverside 10:14 9/8/1977 Riverside 16:45 9/8/1977 Riverside 22:30 9/8/1977 Round 17:34 9/9/1977 Old Faithful 8:43 ~1:30 9/9/1977 Old Faithful 9:40 0:57 ~4:10 ~09:28 9/9/1977 Old Faithful 11:07 1:27 1:53 ~10:52 9/9/1977 Old Faithful 12:03 0:56 4:30 11:54 9/9/1977 Old Faithful 13:20:00 1:17 3:57 13:18 9/9/1977 Old Faithful 14:37:00 1:17 3:32 14:31 9/9/1977 Old Faithful 15:56:00 1:19 3:57 15:47 9/9/1977 Old Faithful 17:02 1:06 ~4:00 17:08 9/9/1977 Old Faithful 18:22 1:20 1:52 18:14 9/9/1977 Old Faithful 19:21 0:59 4:01 19:12 9/9/1977 Old Faithful 20:50 1:29 4:15 9/9/1977 Old Faithful 22:05 1:15 2:07 17m59 22:03 9/9/1977 Old Faithful 22:49 0:44 4:32 22:55 9/9/1977 Beehive 14:20 9/9/1977 Castle 13:12 9/9/1977 Dome 8:58:00 ie 9/9/1977 Dome 15:30 9/9/1977 Dome 16:12 9/9/1977 Dome 17:29 9/9/1977 Grand 6:22 2B 9/9/1977 Grand 13:57 3B 9/9/1977 Riverside 4:06 9/9/1977 Riverside 9:41 9/9/1977 Riverside 15:21 9/9/1977 Riverside 20:59 9/9/1977 Spiteful 8:36 ie 9/10/1977 Old Faithful 0:17 1:28 2:22 0:05 9/10/1977 Old Faithful 1:10 0:53 4:12 1:09 9/10/1977 Old Faithful 6:59 short 9/10/1977 Old Faithful 7:48:00 0:49 ~4:30 7:49 9/10/1977 Old Faithful 9:09 1:21 ~2:00? 9:03 9/10/1977 Old Faithful 9:59 0:50 4:08 9:59 9/10/1977 Old Faithful 11:27 1:28 4:13 11:11 9/10/1977 Old Faithful 12:49 1:22 3:54 12:40 9/10/1977 Old Faithful 14:04 1:15 4:11 1:55notypo 9/10/1977 Old Faithful 15:18 1:14 1:45 15:17 9/10/1977 Old Faithful 16:09 0:51 4:13 16:05 9/10/1977 Old Faithful 17:26 1:17 2:29 17:22 9/10/1977 Old Faithful 18:18 0:52 4:19 18:18 9/10/1977 Old Faithful 19:38 1:20 2:15 19:31 9/10/1977 Old Faithful 20:26:00 0:48 4:36 20:30 9/10/1977 Old Faithful 21:48 1:22 1:53 22:38 9/10/1977 Old Faithful 22:51 1:03 4:45 0:08 9/10/1977 Beehive 18:26 d=4m47;steam2m10 9/10/1977 Beehive's Indicator 18:20 9/10/1977 Castle 7:45 9/10/1977 Castle 16:40 ie 9/10/1977 Depression 18:10 9/10/1977 Grand 6:15 4B 9/10/1977 Grand 14:07 9/10/1977 Grand 22:09 3B 9/10/1977 Great Fountain 18:15 final stages of eruption1838 9/10/1977 Lion 20:44 9/10/1977 Riverside 2:27 9/10/1977 Riverside 8:07 9/10/1977 Riverside 14:18 9/10/1977 Round 9:48 9/11/1977 Old Faithful 0:12 1:21 4:22 0:08 9/11/1977 Old Faithful 7:20 3:31 9/11/1977 Old Faithful 8:32 1:12 3:55 8:30 9/11/1977 Old Faithful 9:58 1:26 2:20 9:42 9/11/1977 Old Faithful 10:43 0:45 3:33 10:50 9/11/1977 Old Faithful 12:08 1:25 1:57 11:53 9/11/1977 Old Faithful 12:56 0:48 4:26 12:57 9/11/1977 Old Faithful 14:10 1:14 2:05 14:10 9/11/1977 Old Faithful 14:57 0:47 3:58 15:00 9/11/1977 Old Faithful 16:17 1:20 1:56 16:09 9/11/1977 Old Faithful 17:03 0:46 4:52 17:04 9/11/1977 Old Faithful 18:20 1:17 3:24 18:19 9/11/1977 Old Faithful 19:24 1:04 3:45 19:28 9/11/1977 Old Faithful 20:41 1:17 1:46 20:34 9/11/1977 Old Faithful 21:32 0:51 3:40 21:26 9/11/1977 Old Faithful 22:42 1:10 3:15 22:36 9/11/1977 Old Faithful 23:43 1:01 5:07 23:43 9/11/1977 Beehive 15:08:00 9/11/1977 Castle 11:20 9/11/1977 Castle 20:40 ie 9/11/1977 Depression 15:56 9/11/1977 Grand 6:05 2B 9/11/1977 Grand 14:09 2B 9/11/1977 Grand 21:20 9/11/1977 Great Fountain 13:36 9/11/1977 Lion 7:45 9/11/1977 Lion 9:30 9/11/1977 Lion 10:57 ie 9/11/1977 Lion 16:04 9/11/1977 Lion 17:55 ie 9/11/1977 Oblong 13:37 9/11/1977 Riverside 7:57 9/11/1977 Round 14:05 VR 9/12/1977 Old Faithful 7:57 4:00? 9/12/1977 Old Faithful 9:14 1:17 3:45 9:07 9/12/1977 Old Faithful 10:27 1:13 ?steam4:10 10:24 9/12/1977 Old Faithful 11:35 1:08 3:50 11:40 9/12/1977 Old Faithful 12:51 1:16 3:16 12:45 9/12/1977 Old Faithful 13:58 1:07 2:18 13:56 9/12/1977 Old Faithful 15:00 1:02 4:45 14:52 9/12/1977 Old Faithful 16:28 1:28 3:42 16:16 9/12/1977 Old Faithful 17:44 1:16 3:54 17:38 9/12/1977 Old Faithful 18:57 1:13 4:07 18:55 9/12/1977 Old Faithful 20:05 1:08 1:75notypo 20:09 9/12/1977 Old Faithful 21:14 1:09 4:05 20:48 9/12/1977 Old Faithful 22:25 1:11 3:15 22:25 9/12/1977 Old Faithful 23:41 1:16 3:31 23:27 9/12/1977 Beehive 14:52 9/12/1977 Beehive's Indicator 14:43 9/12/1977 Castle 5:32 9/12/1977 Castle 14:40 9/12/1977 Grand 5:49 9/12/1977 Grand 13:25 ie 9/12/1977 Grand after10 "3bursts,~12m,Rift had been ie" 9/12/1977 Great Fountain 11:08 11:12VR 9/12/1977 Great Fountain 20:15 ie 9/12/1977 Lone Star 17:07 16:48ie geyser nearLoneStar 9/12/1977 Lone Star 20:08 9/12/1977 Oblong 6:11 9/12/1977 Riverside 6:24 9/12/1977 Riverside 17:52 VR dur 19.5m 9/12/1977 Round 17:36 9/13/1977 Old Faithful 8:04 ~4:30 9/13/1977 Old Faithful 9:12 1:08 ~3:00 9:19 9/13/1977 Old Faithful 10:19 1:07 4:18 10:12 9/13/1977 Old Faithful 11:37 1:18 2:02 11:32 9/13/1977 Old Faithful 12:28 0:51 4:08 12:25 9/13/1977 Old Faithful 13:48 1:20 1:55 13:40 9/13/1977 Old Faithful 14:43 0:55 ~4:00 14:38 9/13/1977 Old Faithful 16:00 1:17 3:45 15:55 9/13/1977 Old Faithful 17:21 1:21 2:05 17:10 9/13/1977 Old Faithful 18:13 0:52 4:18 18:11 9/13/1977 Old Faithful 19:29 1:16 2:24 19:26 9/13/1977 Old Faithful 20:20 0:51 4:45 20:23 9/13/1977 Old Faithful 21:38 1:18 1:53 21:35 9/13/1977 Old Faithful 22:35 0:57 4:55 22:26 9/13/1977 Beehive 15:00 Indicator about 15-20m before 9/13/1977 Castle 18:30 ie 9/13/1977 Grand 7:36 9/13/1977 Grand 15:41 9/13/1977 Grand 22:58 VR 9/13/1977 Great Fountain 18:25 VR 9/13/1977 Riverside 6:01 9/13/1977 Riverside 11:35 9/14/1977 Old Faithful 0:01 1:26 1:58 9/13/2003 23:51 9/14/1977 Old Faithful 7:47 4:08 9/14/1977 Old Faithful 9:00 1:13 3:56 8:59 9/14/1977 Old Faithful 10:20 1:20 2:05 10:12 9/14/1977 Old Faithful 11:11 0:51 4:20 11:10 9/14/1977 Old Faithful 12:34 1:23 4:00 12:24 9/14/1977 Old Faithful 13:47 1:13 3:55 13:46 9/14/1977 Old Faithful 15:02 1:15 3:39 14:59 9/14/1977 Old Faithful 16:16 1:14 3:53 16:12 9/14/1977 Old Faithful 17:27 1:11 2:10 17:28 9/14/1977 Old Faithful 18:15 0:48 4:31 18:19 9/14/1977 Old Faithful 19:31 1:16 3:11 19:27 9/14/1977 Old Faithful 20:27 0:56 4:37 20:34(2033 JRR) 9/14/1977 Old Faithful 21:46 1:19 3:31 none 9/14/1977 Old Faithful 22:54 1:08 3:23 22:51 9/14/1977 Beehive 12:09 dur 4:53 9/14/1977 Beehive 21:49 9/14/1977 Beehive's Indicator 2:13 9/14/1977 Beehive's Indicator 11:55 ie 9/14/1977 Castle 3:45 ie ie water 9/14/1977 Castle 13:00 9/14/1977 Grand 6:53 9/14/1977 Grand 13:57 3B 9/14/1977 Great Fountain 6:26 ie 9/14/1977 Great Fountain 14:42 9/14/1977 Pink Cone 10:55 "water 1hr,15-20'" 9/14/1977 Riverside 10:25 VR 9/14/1977 Riverside 15:50 9/15/1977 Old Faithful 0:07 1:13 4:41 9/14/2003 23:57 9/15/1977 Old Faithful 8:12 3:49 9/15/1977 Old Faithful 9:17 1:05 3:22 9:22 9/15/1977 Old Faithful 10:36 1:19 4:24 10:24 9/15/1977 Old Faithful 11:44 1:08 1:50 11:50 9/15/1977 Old Faithful 12:34 0:50 4:00+ 12:31 9/15/1977 Old Faithful 13:59 1:25 2:04 13:46 9/15/1977 Old Faithful 14:59 1:00 4:50 14:49 9/15/1977 Old Faithful 16:09 1:10 4:04 16:15 9/15/1977 Old Faithful 17:23:00 1:14 4:07 17:21 9/15/1977 Old Faithful 18:36 1:13 4:25 18:35 9/15/1977 Old Faithful 19:49 1:13 3:40 19:50 9/15/1977 Old Faithful 21:04 1:15 4:20 56sec 20:59 9/15/1977 Old Faithful 22:24 1:20 Long 22:17 9/15/1977 Old Faithful 23:46 1:22 Long 9/15/1977 Beehive 7:45 dur = 4:36 9/15/1977 Castle 9:10 ie 9/15/1977 Castle 16:45 ie 9/15/1977 Dome 15:44 ie 9/15/1977 Grand 12:43 9/15/1977 Great Fountain 11:14 VR 9/15/1977 Great Fountain 20:20 ie 9/15/1977 Pink Cone 8:57 ie 9/15/1977 Riverside 14:15 VR 9/16/1977 Old Faithful 7:56 ?heavyfog 9/16/1977 Old Faithful 9:14 1:18 3:34 9:02 9/16/1977 Old Faithful 10:21 1:07 4:00 10:18 9/16/1977 Old Faithful 11:32 1:11 3:54 11:33 9/16/1977 Old Faithful 12:43 1:11 4:35 12:43 9/16/1977 Old Faithful 13:57 1:14 4:02 13:58 9/16/1977 Old Faithful 15:07 1:10 3:36 15:09 9/16/1977 Old Faithful 16:20 1:13 4:05 16:17 9/16/1977 Old Faithful 17:39 1:19 4:04 17:32 9/16/1977 Old Faithful 18:46 1:07 3:50 18:51 9/16/1977 Old Faithful 20:08 1:22 3:30+ 19:55 9/16/1977 Old Faithful 21:20 1:12 3:42 21:18 9/16/1977 Old Faithful 22:34 1:14 1:45 22:27 9/16/1977 Old Faithful 23:20 0:46 4:56 23:22 9/16/1977 Beehive 11:54 9/16/1977 Castle 10:38 ie 9/16/1977 Depression 16:26 ie 9/16/1977 Dome 13:50 9/16/1977 Dome 14:37 9/16/1977 Dome 17:15 ie 9/16/1977 Grand 3:57 9/16/1977 Grand 12:21 3Bursts 9/16/1977 Grand 20:57 9/16/1977 Great Fountain 14:45 VR 9/16/1977 Lion 18:13 9/16/1977 Rift 11:15 ieVR still ie 14:27 9/16/1977 Riverside 8:04 9/17/1977 Old Faithful ~07:38 ~4:30 9/17/1977 Old Faithful 8:52 ~1:14 4:16 8:53 9/17/1977 Old Faithful 10:10 1:18 3:23 10:05 9/17/1977 Old Faithful 11:29 1:19 4:03 11:17 9/17/1977 Old Faithful 12:42 1:13 3:47 12:41 9/17/1977 Old Faithful 13:56 1:14 1:52 13:52 9/17/1977 Old Faithful 14:55 0:59 4:11 14:44 9/17/1977 Old Faithful 16:15 1:20 4:11 16:07 9/17/1977 Old Faithful 17:28 1:13 4:19 17:27 9/17/1977 Old Faithful 18:54 1:26 2:00 20'above tree 18:41 9/17/1977 Old Faithful 19:42 0:48 3:47 19:44 9/17/1977 Old Faithful 21:01 1:19 1:51 20:54 9/17/1977 Old Faithful 21:48 0:47 4:47 46m22 21:48 9/17/1977 Old Faithful 23:11 1:23 1:48 83m12 23:04 9/17/1977 Beehive 14:58 ie 9/17/1977 Castle 14:50 9/17/1977 Castle 23:45 ie 9/17/1977 Dome 9:55 ie 9/17/1977 Dome 13:32 ie 9/17/1977 Grand 4:22 2B 9/17/1977 Grand 13:19 ie 4B 9/17/1977 Great Fountain 8:10 9/17/1977 Great Fountain 19:44 <19:51 9/17/1977 Lion 6:53 9/17/1977 Lion 11:54 9/17/1977 Lion 14:02 9/17/1977 Lion 19:14 very high 9/17/1977 Riverside 8:01 9/18/1977 Old Faithful 0:01 0:50 4:37 49m44 9/18/1977 Old Faithful 1:24 1:23 2:09 83m49 1:17 9/18/1977 Old Faithful 2:10 0:46 4:41 45m22 2:16 9/18/1977 Old Faithful 8:25 1:59 9/18/1977 Old Faithful 9:18 0:53 3:40+ 9:15 9/18/1977 Old Faithful 10:46 1:28 3:22 top of tree 10:34 9/18/1977 Old Faithful 11:55 1:09 4:21 11:53 9/18/1977 Old Faithful 13:08 1:13 3:45 13:09 9/18/1977 Old Faithful 14:31 1:23 1:53 14:18 9/18/1977 Old Faithful 15:20 0:49 4:24 15:19 9/18/1977 Old Faithful 16:47 1:27 3:43 16:33 9/18/1977 Old Faithful 18:17 1:30 1:41 17:57 9/18/1977 Old Faithful 18:55 0:38 4:42 19:03 9/18/1977 Old Faithful 20:17 1:22 1:45 20:12 9/18/1977 Old Faithful 21:03 0:46 4:40 21:04 9/18/1977 Old Faithful 22:20 1:17 3:59 22:19 9/18/1977 Old Faithful 23:36 1:16 4:18 23:32 9/18/1977 Beehive 7:18 07:24heavysteam 9/18/1977 Beehive 18:57 ie 9/18/1977 Bulger 14:40 9/18/1977 Castle 8:40 9/18/1977 Depression 18:30 ie 9/18/1977 Fountain 16:28 ie 9/18/1977 Grand 6:38 2B 9/18/1977 Grand 14:42 2Bursts 9/18/1977 Grand 21:34 VR 2Bursts 9/18/1977 Great Fountain 4:56 9/18/1977 Great Fountain 14:00 9/18/1977 Great Fountain 22:40 ie 9/18/1977 Riverside 8:02 9/18/1977 Riverside 14:30 VR 9/18/1977 Tardy 14:52 9/19/1977 Old Faithful 8:07 3:53 9/19/1977 Old Faithful 9:22 1:15 4:15 9:18 9/19/1977 Old Faithful 10:41 1:19 4:11 10:35 9/19/1977 Old Faithful 11:50 1:09 4:08 11:53 9/19/1977 Old Faithful 13:06 1:16 3:56 13:02 9/19/1977 Old Faithful 14:23 1:17 2:15 14:16 9/19/1977 Old Faithful 15:06 0:43 4:43 15:15 9/19/1977 Old Faithful 16:27 1:21 3:14 16:22 9/19/1977 Old Faithful 17:24 0:57 3:46 17:32 9/19/1977 Old Faithful 18:40 1:16 3:55 18:34 9/19/1977 Old Faithful 19:50 1:10 Long 19:51 9/19/1977 Old Faithful 20:58 1:08 1:50 20:50 9/19/1977 Old Faithful 22:00 1:01 4:51 15m54 61m41 21:46 9/19/1977 Old Faithful 23:16 1:16 2:03 5m21 76m11 23:16 9/19/1977 Beehive 8:37 9/19/1977 Castle 12:50 9/19/1977 Cliff 10:45 "20m =dur, 50'" 9/19/1977 Grand 5:58 9/19/1977 Grand 13:03 2bursts 9/19/1977 Grand 21:23 9/19/1977 Great Fountain 8:15 ie 9/19/1977 Great Fountain 17:43 No Pause 9/19/1977 Oblong 9:10 9/19/1977 Riverside 8:05 9/19/1977 Riverside 13:20 9/19/1977 Riverside 19:42 9/20/1977 Old Faithful 0:26 1:09 4:21 23m07 69m44 0:06 9/20/1977 Old Faithful 7:32 4:04 9/20/1977 Old Faithful 8:55 1:23 4:00 8:44 9/20/1977 Old Faithful 10:05 1:10 4:00 10:05 9/20/1977 Old Faithful ~11:17 ~1:12 ~4:45 11:17 9/20/1977 Old Faithful 12:42 ~1:25 3:58 12:36 9/20/1977 Old Faithful 13:57 1:15 1:53 13:54 9/20/1977 Old Faithful 14:45 0:48 4:59 14:45 9/20/1977 Old Faithful 16:03 1:18 2:05 16:01 9/20/1977 Old Faithful 17:03 1:00 4:56 16:53 9/20/1977 Old Faithful 18:16 1:13 2:19 18:18 9/20/1977 Old Faithful 19:14 0:58 4:34 19:04 9/20/1977 Old Faithful 20:33 1:19 1:55 20:29 9/20/1977 Beehive 12:49 ie 9/20/1977 Castle 7:20 9/20/1977 Castle 16:53 ie 9/20/1977 Depression 14:38 9/20/1977 Fan and Mortar 10:00 ieVR 9/20/1977 Grand 5:31 9/20/1977 Grand 12:40 9/20/1977 Grand 20:23 3b 9/20/1977 Great Fountain 11:56 9/20/1977 Great Fountain 21:53 "Boil=1m27,P=5m55" 9/20/1977 Riverside 7:12 9/20/1977 Riverside 12:50 9/21/1977 Old Faithful 7:56 4:02 9/21/1977 Old Faithful 9:17 1:21 2:01 9:08 9/21/1977 Old Faithful 10:09 0:52 4:25 10:07 9/21/1977 Old Faithful 11:28 1:19 3:37 11:23 9/21/1977 Old Faithful 12:36 1:08 3:33 12:38 9/21/1977 Old Faithful 13:52 1:16 3:44 13:46 9/21/1977 Old Faithful 15:09 1:17 3:58 15:02 9/21/1977 Old Faithful 16:34:00 1:25 3:55 16:21 9/21/1977 Old Faithful 17:55:00 1:21 1:55 17:46 9/21/1977 Old Faithful 18:51 0:56 4:37 18:45 9/21/1977 Old Faithful 20:00 1:09 Long 20:07 9/21/1977 Old Faithful 21:15 1:15 1:57 4m06 21:15 9/21/1977 Old Faithful 22:01 0:46 Long 22:05 9/21/1977 Old Faithful 23:23:00 1:22 2:05 23:16 9/21/1977 Castle ~11:45 ie 9/21/1977 Grand 5:40 VR 9/21/1977 Grand 12:46 ie 9/21/1977 Great Fountain 7:17 9/21/1977 Great Fountain 16:40 9/21/1977 Riverside 0:35 ie 9/21/1977 Riverside 7:23 ie 9/21/1977 Round 13:09 9/22/1977 Old Faithful 7:55 ~3:34 9/22/1977 Old Faithful 9:19 1:24 4:17 9:05 9/22/1977 Old Faithful 10:27 1:08 3:47 10:32 9/22/1977 Old Faithful 11:42 1:15 1:56 11:38 9/22/1977 Old Faithful 12:35 0:53 3:52 12:29 9/22/1977 Old Faithful 13:59 1:24 4:02 13:45 9/22/1977 Old Faithful 15:08 1:09 4:04 15:11 9/22/1977 Old Faithful 16:21 1:13 4:20 16:20 9/22/1977 Old Faithful 17:33 1:12 1:47 17:35 9/22/1977 Old Faithful 18:35 1:02 4:08 18:23 9/22/1977 Old Faithful 19:49 1:14 ~2:00 19:47 9/22/1977 Beehive 8:09 9/22/1977 Beehive 17:56 9/22/1977 Castle 14:44 ie water ie 9/22/1977 Fan and Mortar 17:09 VR lasted ~ 1/2hr 9/22/1977 Grand 12:00 9/22/1977 Grand 12:05notypo 2Bursts 9/22/1977 Lion 8:26 9/22/1977 Lion 12:02 9/23/1977 Old Faithful 7:14 ie short 9/23/1977 Old Faithful 8:05 0:51 4:16 ~08:09 9/23/1977 Old Faithful 9:20 1:15 3:49 9:18 9/23/1977 Old Faithful 10:35 1:15 4:11 10:30 9/23/1977 Old Faithful 11:48 1:13 ~2:00 11:48 9/23/1977 Old Faithful 12:46 0:58 4:28 12:38 9/23/1977 Old Faithful 14:04 1:18 2:03 14:00 9/23/1977 Old Faithful 15:08 1:04 4:26 14:54 9/23/1977 Old Faithful 16:25 1:17 4:04 16:23 9/23/1977 Old Faithful 17:32 1:07 3:57 17:38 9/23/1977 Old Faithful 18:46 1:14 3:55 18:44 9/23/1977 Old Faithful 21:22 4:28 20:00 9/23/1977 Beehive 10:44 9/23/1977 Castle 8:35 ieVR 9/23/1977 Castle 17:42 Donaldson 9/23/1977 Grand 11:31 9/23/1977 Grand 20:09 VR 2Bursts 9/23/1977 Great Fountain 15:48 9/23/1977 Riverside 11:00 VR 9/24/1977 Old Faithful 8:12 3:24 9/24/1977 Old Faithful 9:30 1:18 4:10 9:21 9/24/1977 Old Faithful 10:55 1:25 4:00 10:43 9/24/1977 Old Faithful 12:20 1:25 4:49 12:07 9/24/1977 Old Faithful 13:30 1:10 3:57 13:36 9/24/1977 Old Faithful 14:48 1:18 4:00 14:41 9/24/1977 Old Faithful 15:50 1:02 3:40 16:00 9/24/1977 Old Faithful 17:13 1:23 4:15 16:58 9/24/1977 Old Faithful 18:27 1:14 4:11 18:26 9/24/1977 Beehive 7:50 9/24/1977 Beehive 22:36 9/24/1977 Castle 12:05 9/24/1977 Castle 21:15 9/24/1977 Dome 9:50 ie 9/24/1977 Grand 11:28 VR 9/24/1977 Grand 18:40 9/24/1977 Great Fountain 10:40 Mr. Warren 9/25/1977 Old Faithful 8:09 2:05 9/25/1977 Old Faithful 9:08 0:59 4:34 8:59 9/25/1977 Old Faithful 10:28 1:20 2:20 10:23 9/25/1977 Old Faithful 11:30 1:02 4:53 11:22 9/25/1977 Old Faithful 12:52 1:22 4:00 12:46 9/25/1977 Old Faithful 13:58 1:06 4:04 14:04 9/25/1977 Old Faithful 15:25 1:27 4:20 15:10 9/25/1977 Old Faithful 16:46 1:21 4:04 16:38 9/25/1977 Old Faithful 17:45 0:59 3:40 17:58 9/25/1977 Old Faithful 18:54 1:09 3:37 18:55 9/25/1977 Old Faithful 20:01 1:07 4:11 20:04 9/25/1977 Old Faithful 21:20 1:19 1:54 21:14 9/25/1977 Old Faithful 22:11 0:51 4:02 22:10 9/25/1977 Old Faithful 23:26 1:15 3:58 23:23 9/25/1977 Beehive 11:30 5m water 9/25/1977 Castle 7:14 ie ie steam 9/25/1977 Castle ~15:40 9/25/1977 Depression 11:19 9/25/1977 Fountain 23:45 ie 9/25/1977 Grand 9:55 VR 9/25/1977 Great Fountain 7:40 ie ie final phase 9/25/1977 Great Fountain 14:30 9/25/1977 Great Fountain 23:52 9/25/1977 Link 9:05 "8',d=6m" 9/25/1977 Oblong 10:38 9/25/1977 Riverside 9:59 9/26/1977 Old Faithful 8:00 1:45 9/26/1977 Old Faithful 8:53 0:53 4:37 8:47 9/26/1977 Old Faithful 10:17 1:24 4:00 10:08 9/26/1977 Old Faithful 11:33 1:16 4:03 11:29 9/26/1977 Old Faithful 12:41 1:08 4:00 12:45 9/26/1977 Old Faithful 14:05 1:24 3:57 13:53 9/26/1977 Old Faithful 15:16 1:11 2:09 15:16 9/26/1977 Old Faithful 16:09 0:53 4:41 16:04 9/26/1977 Old Faithful 17:35 1:26 1:51 17:23 9/26/1977 Old Faithful 18:32 0:57 4:26 18:22 9/26/1977 Artemisia 15:05 9/26/1977 Beehive 15:36 ie 9/26/1977 Castle 0:30 ie 9/26/1977 Castle 12:47 9/26/1977 Cliff 10:55 ie 9/26/1977 Dome 0:40 ie 9/26/1977 Fountain 10:30 ie to11 Warren 9/26/1977 Grand 9:30 ie 9/26/1977 Grand 17:29 "4b,~14m" 9/26/1977 Great Fountain 9:34 superburst Mr.Warren 9/26/1977 Great Fountain 19:36 9/26/1977 Riverside 10:15 VR 9/26/1977 Riverside 15:59 9/26/1977 Spiteful 11:05 VR 9/27/1977 Old Faithful 7:37 1:59 9/27/1977 Old Faithful 8:38 1:01 5:00 8:27 9/27/1977 Old Faithful 10:09 1:31 ~3 1/4 9:54 9/27/1977 Old Faithful 10:55 0:46 ~4:27 11:14 9/27/1977 Old Faithful 12:15 1:20 1:48 12:09 9/27/1977 Old Faithful 13:05 0:50 4:40 13:03 9/27/1977 Old Faithful 14:31 1:26 1:51 14:20 9/27/1977 Old Faithful 15:17 0:46 3:40 15:19 9/27/1977 Old Faithful 16:41 1:24 1:49 16:27 9/27/1977 Old Faithful 17:31 0:50 4:36 17:28 9/27/1977 Old Faithful 18:53 1:22 1:54 18:46 9/27/1977 Old Faithful 19:42 0:49 4:27 19:43 9/27/1977 Old Faithful 20:54 1:12 Long 21:57 9/27/1977 Old Faithful 22:22 1:28 4:14 13m recycle 22:09 9/27/1977 Beehive 16:26 "SS-Cone7:40,18:49" 9/27/1977 Beehive's Indicator 16:10 9/27/1977 Castle 7:30 ie 9/27/1977 Castle 16:42 9/27/1977 Depression 7:44:00 ie 9/27/1977 Depression 19:40:00 ie 9/27/1977 Grand 11:49 9/27/1977 Grand 20:30 3B 9/27/1977 Great Fountain 14:59 9/27/1977 Great Fountain 23:15 ie 9/27/1977 Lion 9:47 9/27/1977 Riverside 9:55 VR 9/27/1977 Riverside 15:35 9/28/1977 Old Faithful 7:32:00 4:00 9/28/1977 Old Faithful 8:54 1:22 3:30 8:44 9/28/1977 Old Faithful 10:05 1:11 3:50 10:04 9/28/1977 Old Faithful 11:22 1:17 4:04 11:16 9/28/1977 Old Faithful 12:37 1:15 3:22 12:34 9/28/1977 Old Faithful 13:53 1:16 4:06 13:42 9/28/1977 Old Faithful 15:11 1:18 3:49 15:05 9/28/1977 Old Faithful 16:24 1:13 3:56 16:21 9/28/1977 Old Faithful 17:37 1:13 3:53 17:36 9/28/1977 Old Faithful 18:49 1:12 3:22 18:49 9/28/1977 Old Faithful 19:53 1:04 4:05 19:54 9/28/1977 Old Faithful 21:07 1:14 ~4 21:05 9/28/1977 Old Faithful 22:21 1:14 2:28 22:19 9/28/1977 Old Faithful 23:20 0:59 4:55 >or = 9m 23:16 9/28/1977 Beehive 8:34 ie 9/28/1977 Beehive 19:11 ie 9/28/1977 Beehive's Indicator 18:50 9/28/1977 Castle 1:45 ie 9/28/1977 Castle 11:00 ie ie steam 9/28/1977 Castle ~20:00 VR 9/28/1977 Grand 12:00-12:30 VR between 1200&1230 9/28/1977 Riverside 8:52 9/29/1977 Old Faithful 0:33 1:13 3:55 0:36 9/29/1977 Old Faithful 1:50 1:17 3:51 1:45 9/29/1977 Old Faithful 5:30 VR 9/29/1977 Old Faithful 6:45 VR 9/29/1977 Old Faithful 7:51 3:26 9/29/1977 Old Faithful 9:08 1:17 3:19 9:02 9/29/1977 Old Faithful 10:25 1:17 1:54 10:14 9/29/1977 Old Faithful 11:09 0:44 4:33 near record 11:15 9/29/1977 Old Faithful 12:40 1:31 2:13 12:24 9/29/1977 Old Faithful 13:35 0:55 4:30 above tree 13:32 9/29/1977 Old Faithful 15:11 1:36 1:46 ~record above tree 14:50 9/29/1977 Old Faithful 15:56 0:45 3:56 15:58 9/29/1977 Old Faithful 17:15 1:19 1:45 17:08 9/29/1977 Old Faithful 18:05 0:50 4:27 18:02 9/29/1977 Old Faithful 19:31 1:26 ~1:48 19:18 9/29/1977 Old Faithful 20:16 0:45 4:18 20:18 9/29/1977 Old Faithful 21:42 1:26 4:12 21:29 9/29/1977 Old Faithful 22:56 1:14 4:14 22:55 9/29/1977 Beehive 16:08 9/29/1977 Castle 12:46 9/29/1977 Depression 9:16 ie 9/29/1977 Grand 13:00 VR 9/29/1977 Great Fountain 14:45 VR to 15:01spectacular! 9/29/1977 Riverside 8:40 ie 9/30/1977 Old Faithful 0:07 1:11 2:11 0:09 9/30/1977 Old Faithful 0:58 0:51 4:47 0:59 9/30/1977 Old Faithful 7:39 3:21 9/30/1977 Old Faithful 8:50 1:11 4:08 8:44 9/30/1977 Old Faithful 10:03 1:13 ~4:04 10:02 9/30/1977 Old Faithful 11:18 1:15 1:54 11:15 9/30/1977 Old Faithful 12:13 0:55 4:16 12:08 9/30/1977 Old Faithful 13:24 1:11 2:05 13:26 9/30/1977 Old Faithful 14:22 0:58 4:24 14:14 9/30/1977 Old Faithful 16:00 1:38 3:30 15:37 9/30/1977 Old Faithful 17:06 1:06 4:42 17:10 9/30/1977 Old Faithful 18:22 1:16 3:47 18:21 9/30/1977 Old Faithful 19:31 1:09 3:59 19:32 9/30/1977 Old Faithful 20:53 1:22 4:03 20:43 9/30/1977 Old Faithful 22:03 1:10 Long 22:05 9/30/1977 Beehive 11:00 d=4m48 9/30/1977 Beehive's Indicator 10:48 ie 9/30/1977 Castle 17:37 9/30/1977 Lion 16:30 ie 9/30/1977 Lion 17:58 9/30/1977 Riverside ~15:45 VR 9/30/1977 Round 15:32 ie 10/1/1977 Old Faithful 7:21 10/1/1977 Old Faithful 8:35 1:14 2:10 8:30 10/1/1977 Old Faithful 9:24 0:49 4:33 9:26 10/1/1977 Old Faithful 10:38 1:14 3:19 10:37 10/1/1977 Old Faithful 11:43 1:05 3:49 11:44 10/1/1977 Old Faithful 13:00 1:17 3:42 12:53 10/1/1977 Old Faithful 14:14 1:14 2:06 14:10 10/1/1977 Old Faithful 15:08 0:54 ~5:00 15:05 10/1/1977 Old Faithful 16:22 1:14 2:10 16:26 10/1/1977 Old Faithful 17:26 1:04 4:20 17:13 10/1/1977 Beehive 21:50 ie 10/1/1977 Castle 11:53 10/1/1977 Grand 11:20 3Bursts 10/2/1977 Old Faithful 8:12 3:28 10/2/1977 Old Faithful 9:31 1:19 ~3:06 heavy fog 9:22 10/2/1977 Old Faithful 10:36 1:05 3:36 10:31 10/2/1977 Old Faithful 11:44 1:08 3:54 SWCone steam 11:46 10/2/1977 Old Faithful 13:02 1:18 4:11 12:54 10/2/1977 Old Faithful 14:14 1:12 1:48 14:14 10/2/1977 Old Faithful 15:14 1:00 4:25 15:02 10/2/1977 Old Faithful 16:33 1:19 3:36 16:29 10/2/1977 Old Faithful 17:57 1:24 4:28 17:37 10/2/1977 Old Faithful 19:16 1:19 4:00 19:12 10/2/1977 Old Faithful 20:27 1:11 1:51 clock stop~2m 20:28 10/2/1977 Old Faithful 21:25 0:58 4:27 21:15 10/2/1977 Beehive 11:35 ie 10/2/1977 Beehive 23:05 ie 10/2/1977 Castle 15:50 ie 10/2/1977 Grand 12:46 3B 10/3/1977 Old Faithful 8:08 4:46 10/3/1977 Old Faithful 9:23 1:15 ~4:15 9:24 10/3/1977 Old Faithful 10:32 1:09 ~4:08 10:35 10/3/1977 Old Faithful 11:50 1:18 3:58 11:44 10/3/1977 Old Faithful 13:08 1:18 1:56 13:02 10/3/1977 Old Faithful 13:56 0:48 4:40 13:58 10/3/1977 Old Faithful 15:26 1:30 1:47 15:11 10/3/1977 Old Faithful 16:15 0:49 4:36 16:13 10/3/1977 Old Faithful 17:28 1:13 3:58 17:30 10/3/1977 Old Faithful 18:39 1:11 3:59 18:40 10/3/1977 Old Faithful 19:47 1:08 3:47 19:51 10/3/1977 Old Faithful 20:57 1:10 4:06 20:57 10/3/1977 Old Faithful 22:13 1:16 1:53 22:09 10/3/1977 Old Faithful 23:05 0:52 4:28 23:03 10/3/1977 Beehive 10:28 ie 10/3/1977 Beehive 20:43 ie 10/3/1977 Castle 16:12 10/3/1977 Fan and Mortar 14:55 ie 2nd burst 15:12 10/3/1977 Grand 16:05 1 Burst 10/3/1977 Great Fountain 15:00 ie 10/3/1977 Oblong 16:22 10/3/1977 Rift 8:40 ie 10/3/1977 Riverside 8:10 ie 10/3/1977 Riverside 13:56 ie 10/4/1977 Old Faithful 0:21 1:16 3:33 0:20 10/4/1977 Old Faithful 9:37 4:40 10/4/1977 Old Faithful 10:55 1:18 2:14 10:52 10/4/1977 Old Faithful 11:52 0:57 3:50 11:47 10/4/1977 Old Faithful 13:04 1:12 4:14 13:02 10/4/1977 Old Faithful 14:21 1:17 2:15 14:17 10/4/1977 Old Faithful 15:17 0:56 4:40 15:12 10/4/1977 Old Faithful 16:34 1:17 3:02 16:32 10/4/1977 Old Faithful 17:55 1:21 3:41 17:34 10/4/1977 Beehive 12:58 10/4/1977 Castle 10:53 10/4/1977 Crested Pool 10:44 3-4' boil 10/4/1977 Grand ~09:15 ie 10/4/1977 Grand 16:55 VR 10/4/1977 Great Fountain 12:17 VR 10/4/1977 Lion 13:11 ie 10/4/1977 Lion 15:23 10/4/1977 Lion 16:28 3:08durationVR 10/4/1977 Lion 18:42 ie 10/4/1977 Oblong 8:30 10/4/1977 Old Tardy 11:12 ie 10/4/1977 Riverside in ovfl 08:00 10/5/1977 Old Faithful 8:30 2:50 8:34 10/5/1977 Old Faithful 9:27 0:57 3:45 9:28 10/5/1977 Old Faithful 10:38 1:11 ~3 3/4 10:37 10/5/1977 Old Faithful 11:56 1:18 4:13 11:48 10/5/1977 Old Faithful 13:05 1:09 4:07 13:09 10/5/1977 Old Faithful 14:24 1:19 1:55 14:17 10/5/1977 Old Faithful 15:07 0:43 4:05 15:12 10/5/1977 Old Faithful 16:27 1:20 3:43 16:19 10/5/1977 Old Faithful 17:32 1:05 2:45 17:37 10/5/1977 Old Faithful 18:30 0:58 4:28 18:27 10/5/1977 Old Faithful 19:51 1:21 3:51 19:45 10/5/1977 Old Faithful 20:58 1:07 3:53 21:03 10/5/1977 Old Faithful 22:14 1:16 3:50 22:10 10/5/1977 Beehive 13:51 ie 10/5/1977 Castle 14:38 10/5/1977 Depression 11:22 ie 10/5/1977 Grand 16:11 VR 10/5/1977 Great Fountain 15:59 10/5/1977 Lion 11:03 10/5/1977 Lion 13:35 ie 10/5/1977 Lion 15:20 ie 10/5/1977 North Goggles 18:41 D~3 1/4 min 10/5/1977 Riverside 14:37 10/6/1977 Old Faithful ~7:13 10/6/1977 Old Faithful 8:20 ~1:07 4:21 8:18 10/6/1977 Old Faithful 9:44 1:24 4:30 9:34 10/6/1977 Old Faithful 10:57 1:13 1:56 10:59 10/6/1977 Old Faithful 11:55 0:58 4:57 15min 11:44 10/6/1977 Old Faithful 13:16 1:21 3:54 13:10 10/6/1977 Old Faithful 14:21 1:05 4:31 14:18 10/6/1977 Old Faithful 15:38 1:17 2:26 15:36 10/6/1977 Old Faithful 16:40 1:02 3:47 16:33 10/6/1977 Old Faithful 17:54 1:14 2:10 17:50 10/6/1977 Beehive 11:01 D=4:57 10/6/1977 Castle 8:44 10/6/1977 Dome PM active 10/6/1977 Grand 2:48 10/6/1977 Grand 16:30 ie 10/6/1977 Great Fountain 9:55 10/6/1977 Great Fountain 18:02 sig. steam min. 10/6/1977 Old Tardy 9:05 10/6/1977 Riverside 8:34 10/6/1977 Spa 7:58 10/7/1977 Old Faithful 8:03 4:31 10/7/1977 Old Faithful 9:19 1:16 3:55 9:18 10/7/1977 Old Faithful 10:35 1:16 ~3:33 10:31 10/7/1977 Old Faithful 11:43 1:08 ~3:19 11:45 10/7/1977 Old Faithful 12:59 1:16 3:35 12:49 10/7/1977 Old Faithful 14:20 1:21 4:09 2:10notypo 10/7/1977 Old Faithful 15:29 1:09 1:45 15:33 10/7/1977 Old Faithful 16:16 0:47 4:42 16:16 10/7/1977 Old Faithful 17:38 1:22 2:03 17:32 10/7/1977 Old Faithful 18:27 0:49 ?Long 18:28 10/7/1977 Old Faithful 20:37 2:10 10/7/1977 Beehive 18:55 VR 19:00VR 10/7/1977 Castle 12:38 beginning steam phase 10/7/1977 Dome AM active 10/7/1977 Dome 16:54 active 10/7/1977 Grand 09:50? ie 10/7/1977 Great Fountain 12:00+or- VR 10/7/1977 Great Fountain 21:49 VR 10/7/1977 Old Tardy 8:41 10/7/1977 Riverside 13:00 VR 10/8/1977 Old Faithful 7:47 4:57 10/8/1977 Old Faithful 9:10 1:23 4:00 9:03 10/8/1977 Old Faithful 10:25 1:15 3:42 10:22 10/8/1977 Old Faithful 11:38 1:13 4:00 11:35 10/8/1977 Old Faithful 12:55 1:17 4:02 12:50 10/8/1977 Old Faithful 14:13 1:18 4:03 10/8/1977 Old Faithful 15:19 1:06 4:00 15:25 10/8/1977 Old Faithful 16:40 1:21 3:30 16:31 10/8/1977 Old Faithful 17:51 1:11 2:19 17:50 10/8/1977 Old Faithful 18:42 0:51 4:41 18:45 10/8/1977 Old Faithful 20:00 1:18 3:56 19:58 10/8/1977 Beehive 10:10 10/8/1977 Beehive's Indicator 10:01 ie 10/8/1977 Castle 13:40 ie 10/8/1977 Depression 18:33 ie 10/8/1977 Dome 8:50 active 10/8/1977 Dome 14:04 active 10/8/1977 Grand 16:10 ie 3 Bursts 10/8/1977 Great Fountain 13:56 ie 10/8/1977 Great Fountain 06:27ovfl notypo Ranger Rpt 10/8/1977 Oblong 12:01 10/9/1977 Old Faithful 8:50 2:40 10/9/1977 Old Faithful 9:55 1:05 3:40 9:45 10/9/1977 Old Faithful 11:11 1:16 2:24 10:55 10/9/1977 Old Faithful 12:03 0:52 4:48 12:04 10/9/1977 Old Faithful 13:32 1:29 1:48 13:20 10/9/1977 Old Faithful 14:15 0:43 4:36 14:19 10/9/1977 Old Faithful 15:31 1:16 1:47 15:30 10/9/1977 Old Faithful 16:22 0:51 4:36 16:16 10/9/1977 Old Faithful 17:42 1:20 1:58 17:37 10/9/1977 Old Faithful 18:28 0:46 Long 18:32 10/9/1977 Old Faithful 19:44 1:16 Long 19:44 10/9/1977 Beehive 8:27 10/9/1977 Castle 7:47 ie 10/9/1977 Castle 16:50 VR 10/9/1977 Grand VR between 4 and 4:30 10/9/1977 Lion 16:30 10/9/1977 Lion 18:24 ie 10/9/1977 Rift 13:45 ie 10/9/1977 Rift 15:00 ie still ie 10/9/1977 Riverside 13:02 ieVR 10/9/1977 Sawmill 13:45 ie 10/9/1977 Tardy 13:45 ie 10/10/1977 Old Faithful 8:07 4:06 10/10/1977 Old Faithful 9:25 1:18 4:00 9:19 10/10/1977 Old Faithful 10:46 1:21 3:56 10:37 10/10/1977 Old Faithful 11:52 1:06 ~3:40 11:58 10/10/1977 Old Faithful 13:14 1:22 ~4:14 13:09 10/10/1977 Old Faithful 14:27 1:13 3:46 14:27 10/10/1977 Old Faithful 15:39 1:12 3:30 High 15:37 10/10/1977 Old Faithful 16:42 1:03 3:43 16:49 10/10/1977 Old Faithful 17:58 1:16 3:52 17:52 10/10/1977 Old Faithful 19:11 1:13 ~4 1/4 19:00 19:08 10/10/1977 Old Faithful 20:25 1:14 4:08 20:15 20:24 10/10/1977 Beehive 16:50 low 19F 10/10/1977 Castle 10:55 10/10/1977 Fountain 14:15 ie 10/10/1977 Grand 7:50 ie 10/10/1977 Grand 16:02 ie only 1 burst 10/10/1977 Great Fountain 12:15 ie Rick 10/10/1977 Great Fountain 20:25 ie 10/11/1977 Old Faithful 7:12 10/11/1977 Old Faithful 8:24 1:12 3:14 10/11/1977 Old Faithful 9:39 1:15 2:02 9:31 9:30 10/11/1977 Old Faithful 10:24 0:45 4:17 10:23 10:30 10/11/1977 Old Faithful 11:39 1:15 3:45 11:28 11:38 10/11/1977 Old Faithful 12:49 1:10 1:43 toocrowded 12:49 10/11/1977 Old Faithful 13:39 0:50 4:15 crowded 13:36 10/11/1977 Old Faithful 15:03 1:24 2:00 14:53 14:52 10/11/1977 Old Faithful 15:52 0:49 4:24 15:50 15:53 10/11/1977 Old Faithful 17:10 1:18 2:05 17:04 17:06 10/11/1977 Old Faithful 18:06 0:56 4:09 17:58 18:01 10/11/1977 Old Faithful 19:23 1:17 2:06 19:21 19:19 10/11/1977 Old Faithful 20:14 0:51 4:35 20:09 20:13 10/11/1977 Old Faithful 21:26 1:12 2:38(-49s) 21:26 aurora2126 21:29 10/11/1977 Beehive 11:26 indicator not active 10/11/1977 Castle 14:30 ie m.n. splashing~6m 10/11/1977 Castle 18:09 finally erupted 10/11/1977 Grand 9:45 10/11/1977 Grand 18:15 10/11/1977 Great Fountain 5:25 ie 10/11/1977 Great Fountain 14:10in ovfl 10/11/1977 Riverside 12:55 ie 10/12/1977 Old Faithful 8:42:00 2:38 8:38 10/12/1977 Old Faithful 9:29 0:47:00 ~3:40 9:25 9:37 10/12/1977 Old Faithful 10:52 1:23:00 ~3:38 10:41 10:39 10/12/1977 Old Faithful 11:59 1:07:00 2:05 11:54 12:02 10/12/1977 Old Faithful 12:55:00 0:56:00 3:24 ? 12:50 10/12/1977 Old Faithful 14:11:00 1:16:00 4:04 14:05 14:03 10/12/1977 Old Faithful 15:28 1:17:00 1:40 15:21? 15:23 10/12/1977 Old Faithful 16:11 0:43:00 3:56 16:07 16:14 10/12/1977 Old Faithful 17:30 1:19:00 1:40 17:23 17:23 10/12/1977 Old Faithful 18:11 0:41:00 4:15 18:17 10/12/1977 Old Faithful 19:42 1:31:00 1:59 19:30 19:24 10/12/1977 Old Faithful 20:41 0:59:00 4:45 20:23 20:32 10/12/1977 Old Faithful 22:06 1:25:00 4:01 21:51 21:57 10/12/1977 Beehive 13:48 ie with Lion 10/12/1977 Castle 12:40 ie 10/12/1977 Grand ~09:45 10/12/1977 Grand 18:00 2b 10/12/1977 Great Fountain 8:42 10/12/1977 Great Fountain 17:40 66m ovfl 10/12/1977 Lion 8:20 10/12/1977 Lion 11:44 ie 10/12/1977 Lion 13:15 minor/finish 10/12/1977 Lion 13:51 ie 10/12/1977 Lion 15:27 ie 10/12/1977 Lion 18:40 ie 10/12/1977 Oblong 14:10 10/12/1977 Riverside 13:20 10/12/1977 Riverside 20:30 10/13/1977 Old Faithful 7:26 3:10 10/13/1977 Old Faithful 8:38 1:12 4:06 08:34? 8:30 10/13/1977 Old Faithful 10:00 1:22 4:00 9:55 9:50 10/13/1977 Old Faithful 11:16 1:16 4:03 11:05? 11:12 10/13/1977 Old Faithful 12:28 1:12 1:51 12:19 12:28 10/13/1977 Old Faithful 13:13 0:45 4:23 13:13 13:15 10/13/1977 Old Faithful 14:33 1:20 1:37 14:29 14:27 10/13/1977 Old Faithful 15:25 0:52 ~4:15 15:20 15:19 10/13/1977 Old Faithful 16:37 1:12 4:02 16:37one splash 16:38 10/13/1977 Old Faithful 17:43 1:06 4:22 17:42 17:49 10/13/1977 Beehive 15:30 no indicator 10/13/1977 Castle 10:37 ie 10/13/1977 Cliff 15:35 ie 10/13/1977 Grand 9:04 4B 10/13/1977 Grand 17:17 2Bheavy ovfl&waves 2Turbans before 10/13/1977 Great Fountain 12:45 10/13/1977 Lion 10:51 ie 10/13/1977 Lion 12:35 ie 10/13/1977 Lion 14:04 ie 10/13/1977 Lion 15:09 10/13/1977 Riverside 13:32 VR 10/13/1977 Riverside 13:40 VR 10/13/1977 Round 16:45 ie 10/14/1977 Old Faithful 8:34 4:12 8:31 10/14/1977 Old Faithful 9:51 1:17 2:00 9:47 9:47 10/14/1977 Old Faithful 10:46 0:55 4:18 10:41 10:41 10/14/1977 Old Faithful 12:08 1:22 3:30 11:56 12:00 10/14/1977 Old Faithful 13:20 1:12 4:01 none 13:18 10/14/1977 Old Faithful 14:34 1:14 3:36 14:28 14:32 10/14/1977 Old Faithful 15:48 1:14 2:41 15:44 10/14/1977 Old Faithful 16:46 0:58 4:08 16:39 16:43 10/14/1977 Old Faithful 18:03 1:17 3:34 17:58 17:58 10/14/1977 Old Faithful 19:21 1:18 4:15 19:13 10/14/1977 Beehive 9:00 ie no Indicator 10/14/1977 Castle 15:07 end of steam? 10/14/1977 Castle 15:15 ieVR ie water 10/14/1977 Castle 15:35 10/14/1977 Grand 9:08 3B 10/14/1977 Grand 19:26 10/14/1977 Great Fountain 7:26 10/14/1977 Great Fountain 17:54 78m ovfl 10/14/1977 Rift 11:17 ie 10/14/1977 Rift 15:10 ie still ie 10/14/1977 Riverside 14:10 VR 10/14/1977 West Triplet 15:10dry 10/15/1977 Old Faithful 8:39 ~3:30 8:25 10/15/1977 Old Faithful 9:54 1:15 1:40 9:51 9:49 10/15/1977 Old Faithful 10:39 0:45 4:30 10:39 10:40 10/15/1977 Old Faithful 12:00 1:21 1:54 11:54 11:54 10/15/1977 Old Faithful 12:57 0:57 4:28 12:44 10/15/1977 Old Faithful 14:13 1:16 3:16 14:09 14:12 10/15/1977 Old Faithful 15:28 1:15 3:37 15:14 15:18 10/15/1977 Old Faithful 16:46 1:18 1:58 16:32 16:38 10/15/1977 Old Faithful 17:42 0:56 3:52 17:30 17:36 10/15/1977 Old Faithful 19:06 1:24 1:38 18:51 18:48 10/15/1977 Old Faithful 19:59 0:53 Long4:36 19:45 19:53 10/15/1977 Old Faithful 21:14 1:15 4:11 21:15 10/15/1977 Beehive 12:13 "4:58water,4:52steam" 10/15/1977 Beehive's Indicator 12:02 10/15/1977 Castle 8:33 10/15/1977 Castle 17:53 10/15/1977 Fan and Mortar 10:03 10/15/1977 Grand 11:16 "3b,B1=9:36,P1=39s;B2=37s,Ps=58s;B3=31s" 10/15/1977 Grand 19:25 "3B,B1=9:15,P1=35s;B2=34s,P2=54s;B3=35s" 10/15/1977 Great Fountain 11:05 ovfl~10:00 10/15/1977 Oblong 15:00 ie end 10/15/1977 Penta 10:06 ie 10/15/1977 Riverside 9:42 John W.;09:47VR 10/15/1977 Riverside 15:31 10/15/1977 Round 15:07 10/15/1977 Vent 11:19 10/16/1977 Old Faithful 8:44 2:01 8:36 8:40 10/16/1977 Old Faithful 9:33 0:49 4:33 9:25 9:34 10/16/1977 Old Faithful 10:48 1:15 3:50 10:46? 10:48 10/16/1977 Old Faithful 12:03 1:15 4:08 11:55 11:58 10/16/1977 Old Faithful 13:11 1:08 3:04 13:10 13:15 10/16/1977 Old Faithful 14:21 1:10 4:19 14:19 14:11 10/16/1977 Old Faithful 15:41 1:20 1:55 15:33 15:35 10/16/1977 Old Faithful 16:34 0:53 3:57 16:31 16:30 10/16/1977 Old Faithful 17:55 1:21 3:51 17:45 17:46 10/16/1977 Old Faithful 19:09 1:14 3:43 78people 19:05 10/16/1977 Old Faithful 20:22 1:13 4:03 20:19 10/16/1977 Old Faithful 21:47 1:25 4:02 21:46 21:34 10/16/1977 Artemisia 16:45 10/16/1977 Beehive 11:17 10/16/1977 Beehive 23:39 ie 10/16/1977 Beehive's Indicator 11:15 10/16/1977 Castle 11:30 10/16/1977 Castle 21:15 ie 10/16/1977 Grand 9:35 ie "3B,VR" 10/16/1977 Grand 17:36 "1B,11m dur" 10/16/1977 Great Fountain 13:03 "Burst 13:08,63m ovfl" 10/16/1977 Grotto Group 15:08 10/16/1977 Riverside 8:30 J.W. 10/16/1977 Riverside 14:56 10/17/1977 Old Faithful 8:01 3:50 none 10/17/1977 Old Faithful 9:24 1:23 4:00 9:09 9:11 10/17/1977 Old Faithful 10:46:00 1:22 3:39 10:30 10:36 10/17/1977 Old Faithful 12:02 1:16 3:49 11:55 11:59 10/17/1977 Old Faithful 13:08 1:06 4:00 ? 13:14 10/17/1977 Old Faithful 14:23 1:15 3:32 14:18 14:20 10/17/1977 Old Faithful 15:34 1:11 3:58 15:28 15:33 10/17/1977 Old Faithful 16:56 1:22 3:26 16:45 16:46 10/17/1977 Old Faithful 18:03 1:07 18:06 10/17/1977 Beehive 11:24 10/17/1977 Beehive's Indicator 11:11 10/17/1977 Castle 15:10 "15:15ie,rainbow" 10/17/1977 Depression 10:50 ie 10/17/1977 Grand 9:59 "3b, 13min" 10/17/1977 Grand 17:28 4 bursts 10/17/1977 Great Fountain 14:02 66m ovfl;P=5m 10/17/1977 Riverside 16:47 10/18/1977 Old Faithful 8:17 ~2 10/18/1977 Old Faithful 9:05 0:48 ~4:30 very little 9:07 10/18/1977 Old Faithful 10:29 1:24 ~1:50 10:24 10:25 10/18/1977 Old Faithful 11:19 0:50 4:01 11:10delayed OF 11:17 10/18/1977 Old Faithful 12:35 1:16 2:07 12:30 12:31 10/18/1977 Old Faithful 13:34 0:59 4:17 13:28 13:26 10/18/1977 Old Faithful 14:48 1:14 3:54 14:48 14:47 10/18/1977 Old Faithful 15:59 1:11 3:36 15:57 15:59 10/18/1977 Old Faithful 17:21 1:22 3:39 17:04 17:09 10/18/1977 Beehive 12:58 dur=5m15 10/18/1977 Beehive's Indicator 12:41 dur=17m 10/18/1977 Castle 9:15 10/18/1977 Castle 18:18 10/18/1977 Dome 14:32 ie 5ft! 10/18/1977 East Grotto Fountain 15:45 10/18/1977 Grand 10:15 3B;12m dur;30mTurban interval 10/18/1977 Grand 17:48 3B 10/18/1977 Great Fountain 7:40 10/18/1977 Great Fountain 16:37 65m ovfl;P=5m 10/18/1977 Lion 9:42 ie 10/18/1977 Lion 11:06 ie 10/18/1977 Oblong 11:38 10/18/1977 Oblong 17:55 10/18/1977 Riverside 16:45 10/18/1977 Round 17:58 10/19/1977 Old Faithful 7:39 4:00 10/19/1977 Old Faithful 8:59 1:20 ~3:42 8:56 8:51 10/19/1977 Old Faithful 10:21 1:22 4:36 10:07 10:09 10/19/1977 Old Faithful 11:29 1:08 1:56 11:28 11:36 10/19/1977 Old Faithful 12:27 0:58 4:27 12:15 12:19 10/19/1977 Old Faithful 13:44 1:17 3:50 13:38 13:37 10/19/1977 Old Faithful 14:50 1:06 4:05 14:49 14:54 10/19/1977 Old Faithful 16:04 1:14 1:48 16:00 16:02 10/19/1977 Old Faithful 16:55 0:51 4:28 16:50 16:52 10/19/1977 Old Faithful 18:10 1:15 2:12 18:10? 18:10 10/19/1977 Beehive 13:15 10/19/1977 Castle 12:12 10/19/1977 Castle 21:10 10/19/1977 Dome 12:19 10/19/1977 Dome 13:30 10/19/1977 Dome 14:50 10/19/1977 Dome 17:14 10/19/1977 Grand 10:52 3Bursts 10/19/1977 Grand 18:30 ieVR 10/19/1977 Great Fountain 19:25 10/19/1977 Rift night10/18 or early on 10/19 10/19/1977 Riverside 11:23 10/19/1977 Spa 11:17 10/20/1977 Old Faithful 8:06 4:24 10/20/1977 Old Faithful 9:31 1:25 1:47 9:16 9:20 10/20/1977 Old Faithful 10:27 0:56 ~4:20 10:13 10:18 10/20/1977 Old Faithful 11:45 1:18 2:04 11:36 11:40 10/20/1977 Old Faithful 12:32 0:47 4:26 12:29 12:35 10/20/1977 Old Faithful 13:55 1:23 1:50 13:45 13:47 10/20/1977 Old Faithful 14:50 0:55 ~4:30 14:49 14:42 10/20/1977 Old Faithful 16:13 1:23 3:40 16:06 16:05 10/20/1977 Old Faithful 17:23:00 1:10 4:12 17:21 17:23 10/20/1977 Old Faithful 18:45 1:22 2:01 18:34 18:35 10/20/1977 Old Faithful 19:42 0:57 4:32 19:29 19:35 10/20/1977 Old Faithful 21:00 1:18 2:02 20:52 20:57 10/20/1977 Old Faithful 21:51 0:51 4:52 21:46 21:50 10/20/1977 Beehive 11:36 10/20/1977 Castle 7:30 ie 10/20/1977 Castle 15:21 ie 10/20/1977 Dome 9:32 active 10/20/1977 Dome 8:49 active 10/20/1977 Grand 9:34 10/20/1977 Grand 16:36 10/20/1977 Great Fountain 15:17 10/20/1977 Old Tardy 16:13 10/20/1977 Riverside 10:08 10/20/1977 Riverside 16:00 ie 10/20/1977 West Triplet 16:40 "2ft,tried hard" 10/21/1977 Old Faithful 8:30 4:42 8:17 10/21/1977 Old Faithful 9:46 1:16 2:05 9:42 9:46 10/21/1977 Old Faithful 10:42 0:56 ~4:22 10:42 10:36 10/21/1977 Old Faithful 12:07 1:25 1:53 11:59 11:56 10/21/1977 Old Faithful 12:56 0:49 4:19 12:53 12:57 10/21/1977 Old Faithful 14:13 1:17 3:29 14:08 14:09 10/21/1977 Old Faithful 15:28 1:15 3:36 15:23 15:23 10/21/1977 Old Faithful 16:42 1:14 2:13 16:41 16:38 10/21/1977 Old Faithful 17:44 1:02 4:40 17:28 17:32 10/21/1977 Old Faithful 19:04 1:20 1:56 18:55 18:48 10/21/1977 Old Faithful 19:53 0:49 4:31 19:51 19:54 10/21/1977 Old Faithful 21:08 1:15 3:49 none 21:08 10/21/1977 Aurum ~15:00 VC clock 1m43s fast 10/21/1977 Beehive 11:45 d=4:58 10/21/1977 Beehive's Indicator 11:42 ie 10/21/1977 Castle 9:06 ie "water ie,311Pesta" 10/21/1977 Castle 11:35 10/21/1977 Castle 21:00 10/21/1977 Castle 21:02notypo 10/21/1977 Grand 8:40 "12m39;d1=8:22,p1=37s;d2=2m12,p2=49s;d3=38s" 10/21/1977 Grand 16:53 "13m;d1=9:39,p1=41s;d2=32s,p2=59s;d3=57s" 10/21/1977 Great Fountain 10:11 76m ovfl;ended~11:00 per Protective Rpt 10/21/1977 Great Fountain 19:17 7 min 10/21/1977 Lion 9:06 ie 10/21/1977 Lion 10:42 10/21/1977 Lion 13:58 10/21/1977 Lion 15:10 10/21/1977 Lion 18:47 d=2:46 10/21/1977 Riverside 9:52 10/21/1977 Riverside 15:47 10/21/1977 Round ~15:00 10/21/1977 Turban 8:40 11s before Grand 10/21/1977 Vent 8:42 2m13s after Grand 10/22/1977 Old Faithful 9:09 2:02 9:04 10/22/1977 Old Faithful 10:06 0:57 ~3:47 9:57 fog 9:59 10/22/1977 Old Faithful 11:22 1:16 1:54 11:17 11:16 10/22/1977 Old Faithful 12:09 0:47 4:29 ? 12:12 10/22/1977 Old Faithful 13:26 1:17 1:42 13:24 13:24 10/22/1977 Old Faithful 14:10 0:44 4:12 noneseen 14:13 10/22/1977 Old Faithful 15:39 1:29 1:43 15:26 15:26 10/22/1977 Old Faithful 16:30 0:51 4:01 16:21 16:26 10/22/1977 Old Faithful 17:47 1:17 2:38 17:46 17:42 10/22/1977 Old Faithful 18:41 0:54 4:35 18:33 18:42 10/22/1977 Old Faithful 19:59 1:18 4:01 19:53 17:56 10/22/1977 Old Faithful 21:14 1:15 4:37 21:08 21:11 10/22/1977 Artemisia 17:25 ie corr. +1:42 10/22/1977 Beehive 14:55 d=5:18 10/22/1977 Beehive's Indicator 14:43 ie 10/22/1977 Castle 15:14 10/22/1977 Depression 14:33 ie 10/22/1977 Grand 9:38 "VCT, 3b" 10/22/1977 Grand 17:04 1 burst 10/22/1977 Great Fountain 16:24 "ovfl 73m;boil 103s,P=5m50;B1=10m54,p1=4m31;B2=6m38,p2=5m26;B3=7m17,p3=5" 10/22/1977 Little Cub 15:14 10/22/1977 Oblong 10:56 10/22/1977 Riverside 9:58 VCT 10/22/1977 Riverside 16:27 VCT 10/22/1977 Vent 9:39 10/23/1977 Old Faithful 7:47 ie short 10/23/1977 Old Faithful 8:38 0:51 ~3:10 none observed 8:40 10/23/1977 Old Faithful 10:09 1:31 4:04 9:47 9:43 10/23/1977 Old Faithful 11:16 1:07 2:56 ? 11:22 10/23/1977 Old Faithful 12:22 1:06 4:02 12:10 12:18 10/23/1977 Old Faithful 13:40 1:18 3:47 13:32 13:34 10/23/1977 Old Faithful 14:46 1:06 3:35 ? 14:50 10/23/1977 Old Faithful 16:06 1:20 4:16 15:57 15:56 10/23/1977 Old Faithful 17:18 1:12 3:47 17:06 17:19 10/23/1977 Old Faithful 18:38 1:20 3:32 18:30 18:28 10/23/1977 Atomizer 14:44 ie steamphase 10/23/1977 Beehive 17:04 10/23/1977 Castle 12:49 ie 10/23/1977 Fountain 13:10 10/23/1977 Grand 9:54 "2Bursts,Rift ie" 10/23/1977 Grand 17:44 ie 10/23/1977 Great Fountain 10:18 10/23/1977 Opal Spring ~16:55 VR 15ft(30s) 10/23/1977 Opal Spring ~16:20 VR ~10ft 10/23/1977 Pink Cone 12:00 10/23/1977 Rift 8:53 10/23/1977 Rift 11:00 ie still ie 10/23/1977 Rift 13:52 ie still ie 10/23/1977 Riverside 4:45 RUSTRACK 10/23/1977 Riverside 11:11 10/23/1977 Riverside 16:59 10/23/1977 Round 10:17end 10/24/1977 Old Faithful 8:04 1:42 ? 10/24/1977 Old Faithful 8:55 0:51 4:18 8:51 8:51 10/24/1977 Old Faithful 10:09 1:14 3:28 10:07 10:08 10/24/1977 Old Faithful 11:27 1:18 1:58 11:13 11:19 10/24/1977 Old Faithful 12:18 0:51 4:42 12:13 12:17 10/24/1977 Old Faithful 13:41 1:23 3:29 ? 13:34 10/24/1977 Old Faithful 14:46 1:05 1:40 14:46? 14:51 10/24/1977 Old Faithful 15:38 0:52 4:20 15:27 15:32 10/24/1977 Old Faithful 17:06 1:28 4:00 16:51 16:51 10/24/1977 Old Faithful 18:17 1:11 2:14 18:12 18:18 10/24/1977 Old Faithful 19:16 0:59 4:26 19:05 19:09 10/24/1977 Old Faithful 20:36 1:20 3:40 20:25 20:31 10/24/1977 Old Faithful 22:00 1:24 3:35 21:41 21:46 10/24/1977 Old Faithful 23:08 1:08 4:19 23:01 23:10 10/24/1977 Beehive 8:07 ie 10/24/1977 Beehive 18:44 d=4m48s 10/24/1977 Beehive's Indicator 18:31 ie d> or =13m 10/24/1977 Castle 8:10 ie 10/24/1977 Castle 17:08 10/24/1977 Depression 11:00 10/24/1977 Depression 17:40? 10/24/1977 Fan and Mortar 7:38 10/24/1977 Grand 9:48 "d=11:42;d1=8:44,p1=45s;d2=1:03,p2=41s;d3=30s" 10/24/1977 Grand 09:50notypo 10/24/1977 Grand 18:25 VR 10/24/1977 Great Fountain 8:28 VR 10/24/1977 Great Fountain 17:24 69m ovfl; 4 1/2=Pause;superburst! 10/24/1977 Grotto Fountain 7:55 10/24/1977 Riverside 11:01 10/24/1977 Rocket 10:11 40' 10/25/1977 Old Faithful 6:30 short 10/25/1977 Old Faithful 7:22 0:52 4:31 7:10 7:20 10/25/1977 Old Faithful 8:47 1:25 3:12 8:33 8:37 10/25/1977 Old Faithful 10:01 1:14 4:13 9:51 9:52 10/25/1977 Old Faithful 11:22 1:21 4:16 11:08 11:14 10/25/1977 Old Faithful 12:30 1:08 1:45 12:26 12:35 10/25/1977 Old Faithful 13:25 0:55 3:55 13:15 13:17 10/25/1977 Old Faithful 14:41 1:16 3:46 14:37 14:36 10/25/1977 Old Faithful 15:52 1:11 4:01 15:51 15:51 10/25/1977 Old Faithful 17:08 1:16 3:36 17:00 17:04 10/25/1977 Old Faithful 18:27 1:19 4:22 18:13 18:18 10/25/1977 Old Faithful 19:42 1:15 Long 19:42 10/25/1977 Beehive 10:00 4m48s=d 10/25/1977 Castle 11:53 10/25/1977 Grand 13:26 ie 7BurstsVR 10/25/1977 Great Fountain 11:17 8 1/2 min Pause 10/25/1977 Rift 11:45 10/25/1977 Rift 15:00 ie still ie 10/25/1977 Riverside 5:10 russtrack 10/25/1977 White Dome 11:12 10/25/1977 White Dome 11:25 10/26/1977 Old Faithful 7:13 VR 3VR ? 10/26/1977 Old Faithful 8:28 1:15 4:10 8:22 8:20 10/26/1977 Old Faithful 9:49 1:21 1:48 9:36 9:40 10/26/1977 Old Faithful 10:38 0:49 4:28 10:34 10:37 10/26/1977 Old Faithful 11:49 1:11 3:45 11:48 11:53 10/26/1977 Old Faithful 13:01 1:12 3:50 12:57 12:59 10/26/1977 Old Faithful 14:09 1:08 4:02 14:08 14:11 10/26/1977 Old Faithful 15:28 1:19 3:58 15:24 15:21 10/26/1977 Old Faithful 16:37 1:09 ~2:47 16:37 16:40 10/26/1977 Old Faithful 17:28 0:51 4:16 17:25 17:30 10/26/1977 Old Faithful 18:53 1:25 4:22 18:37 18:41 10/26/1977 Beehive's Indicator 14:30 end 15:00 10/26/1977 Castle 15:12 minor 10/26/1977 Depression 10:54 10/26/1977 Grand 0:47 4B;7sec pause between 1st and 2nd burst 10/26/1977 Grand 17:22 17:22to38; 4B;7s pause1st to 2nd 10/26/1977 Lion 11:05 10/26/1977 Lion 14:19 ie 10/26/1977 Lion 16:23 ie 10/26/1977 Oblong 16:46 10/27/1977 Old Faithful 8:00 3:52 ? 10/27/1977 Old Faithful 9:15 1:15 4:02 9:11 10/27/1977 Old Faithful 10:29 1:14 3:59 10:25 10:27 10/27/1977 Old Faithful 11:40 1:11 3:35 11:35 11:41 10/27/1977 Old Faithful 13:01 1:21 3:52 12:49 12:50 10/27/1977 Old Faithful 14:17 1:16 2:22 14:08 14:12 10/27/1977 Old Faithful 15:21 1:04 4:11 15:08 15:13 10/27/1977 Old Faithful 16:36 1:15 4:05 16:35 16:34 10/27/1977 Old Faithful 17:48 1:12 1:58 17:42 17:48 10/27/1977 Beehive's Indicator 15:05 ie till~15:20 10/27/1977 Castle 16:23 10/27/1977 Depression 13:35 10/27/1977 Dome 14:00 5 ft 10/27/1977 Grand 8:28 "d=11:06; d1=8:35,p1=32s;d2=35s,p2=50s;d3=35s(VC 1:43fast)" 10/27/1977 Grand 16:59 "~12m,4B;d1~8,p1~37s;d2=56s,p2=39s;d3=46s,p3=32s;d4=30s" 10/27/1977 Great Fountain 12:52 10/27/1977 Great Fountain 20:17 10/27/1977 Riverside 5:47 10/28/1977 Old Faithful 8:17 4:04 8:16 10/28/1977 Old Faithful 9:40 1:23 3:21 9:28 9:29 10/28/1977 Old Faithful 10:44 1:04 3:32 10:43 10:48 10/28/1977 Old Faithful 12:05 1:21 4:09 11:53 11:54 10/28/1977 Old Faithful 13:27 1:22 ~1:55 13:13 13:17 10/28/1977 Old Faithful 14:23 0:56 4:31 14:10 14:14 10/28/1977 Old Faithful 15:52 1:29 4:16 15:35 15:38 10/28/1977 Old Faithful 17:12 1:20 3:59 16:59 17:05 10/28/1977 Old Faithful 18:26 1:14 ~1 3/4 18:2_? 10/28/1977 Old Faithful 19:17 0:51 4:46 19:09 19:29 10/28/1977 Old Faithful 20:36 1:19 2:32 20:29 10/28/1977 Beehive 9:02 10/28/1977 Beehive 20:39 10/28/1977 Beehive's Indicator 15:33 "end 16:39, no Beehive" 10/28/1977 Castle 10:33 10/28/1977 Castle 20:30 ie 10/28/1977 Depression 19:28 ie 10/28/1977 Dome PM active in PM 10/28/1977 Grand 8:41 "d=11m13;d1=10:10,p1=38s;d2=26s" 10/28/1977 Grand 18:08 10/28/1977 Great Fountain 15:50 VR 10/28/1977 Riverside 5:10 10/28/1977 Riverside 11:02 10/28/1977 Riverside 16:50 ie 10/28/1977 Round 16:02 10/28/1977 Turban 8:41 47s after Grand start 10/28/1977 Turban 16:07 10/28/1977 Turban 16:28 10/28/1977 Turban 16:49 10/28/1977 Turban 17:06 10/28/1977 Turban 17:32 10/28/1977 Turban 17:50 10/28/1977 Vent 8:43 2m19s after Grand start 10/29/1977 Old Faithful 8:19 3:56 8:18 10/29/1977 Old Faithful 9:34 1:15 3:49 9:25 9:31 10/29/1977 Old Faithful 10:46 1:12 1:50 10:41 10:45 10/29/1977 Old Faithful 11:42 0:56 4:36 11:32 11:34 10/29/1977 Old Faithful 12:57 1:15 4:06 12:57 12:57 10/29/1977 Old Faithful 14:12 1:15 3:46 14:07 14:09 10/29/1977 Old Faithful 15:25 1:13 4:33 15:17 15:22 10/29/1977 Old Faithful 16:38 1:13 4:03 16:36 16:40 10/29/1977 Old Faithful 17:51 1:13 short/snow 17:44 17:50 10/29/1977 Beehive before09:00 walk wet at 09:00 10/29/1977 Beehive's Indicator 14:34 ie 10/29/1977 Castle 14:10 ie ie water 10/29/1977 Fountain 15:50 ie 10/29/1977 Grand 10:20 10/29/1977 Great Fountain 10:30 "NoPause, B1=13m14" 10/29/1977 Great Fountain 19:52 No Pause 10/29/1977 Riverside 4:28 10/30/1977 Old Faithful 7:38 MST 3:27 7:32 10/30/1977 Old Faithful 8:54 1:16 4:06 8:52 8:48 10/30/1977 Old Faithful 10:11 1:17 4:12 9:54 10:06 10/30/1977 Old Faithful 11:34 1:23 2:02 11:25 11:24 10/30/1977 Old Faithful 12:25 0:51 4:44 12:17 12:24 10/30/1977 Old Faithful 13:44 1:19 1:52 13:40 13:45 10/30/1977 Old Faithful 14:38 0:54 4:33 14:22 14:32 10/30/1977 Old Faithful 16:05 1:27 4:10 15:42 15:53 10/30/1977 Old Faithful 17:21 1:16 2:08 17:11 17:18 10/30/1977 Old Faithful 18:20 0:59 Long 18:05 18:12 10/30/1977 Beehive 14:27 d=4m47 10/30/1977 Beehive's Indicator 10:42 All park roads closed at 17:30 10/30/1977 Castle 7:26 ie 09:35strong steam/H2OJ.D. 10/30/1977 Lion 10:40 "snow 2""" 10/30/1977 Lion 13:53 "clock set to WWV time today,MST" 10/30/1977 O.F. SW cone 15:50 ie "steam phase ie,no water visible" 10/30/1977 Rift 7:20 ie 10/30/1977 Riverside 3:10 10/31/1977 Old Faithful 7:29 5:06 7:22 10/31/1977 Old Faithful 8:47 1:18 4:04 8:40 8:45 10/31/1977 Old Faithful 10:05 1:18 4:18 9:56 9:59 10/31/1977 Old Faithful 11:12 1:07 ~3:45 11:11 11:18 10/31/1977 Old Faithful 12:28 1:16 4:12 12:25 12:22 10/31/1977 Old Faithful 13:42 1:14 short ? 13:41 10/31/1977 Old Faithful 14:41 0:59 5:14 14:33 14:32 10/31/1977 Old Faithful 16:01 1:20 ~3:48 15:54 15:57 10/31/1977 Old Faithful 17:09 ie 1:08 17:11 10/31/1977 Old Faithful 18:22 1:13 ~4 18:07 10/31/1977 Beehive 14:39 d=4:33 10/31/1977 Grand 15:32 ie 10/31/1977 OF SW cone 7:41 steam phase 10/31/1977 Riverside 2:42 Russtrack 11/1/1977 Old Faithful 7:25 4:10 low +6F 11/1/1977 Old Faithful 8:42 1:17 1:49 8:30 8:38 11/1/1977 Old Faithful 9:30 0:48 4:26 none 9:29 11/1/1977 Old Faithful 10:51 1:21 2:08 10:45 10:45 11/1/1977 Old Faithful 11:40 0:49 4:27 11:40 11:42 11/1/1977 Old Faithful 13:00 1:20 1:45 12:51 12:55 11/1/1977 Old Faithful 13:46 0:46 4:21 13:37 13:47 11/1/1977 Old Faithful 15:08 1:22 1:48 15:04 11/1/1977 Beehive's Indicator 13:49 "d=44min,false" 11/1/1977 Castle 7:42 11/1/1977 Depression 14:33 11/1/1977 Grand 7:40 ie 3b 11/1/1977 OF SW cone 9:45:00 steam 11/1/1977 OF SW cone 14:35 steam 11/1/1977 Riverside 2:35 Rustrack 11/1/1977 Spiteful 6:33:00 ie 11/2/1977 Old Faithful 8:09 2:45 no preds 11/2/1977 Old Faithful 9:08 0:59 4:39 9:04 11/2/1977 Old Faithful 10:28 1:20 2:25 10:22 11/2/1977 Old Faithful 11:29 1:01 4:32 11:19 11/2/1977 Old Faithful 12:52 1:23 1:53 12:41 11/2/1977 Old Faithful 13:40 0:48 4:35 13:37 11/2/1977 Old Faithful 15:02 1:22 1:42 14:52 11/2/1977 Old Faithful 15:46 0:44 4:22 11/2/1977 Old Faithful 17:05 1:19 1:54 11/2/1977 Beehive 14:29 d=4m57 11/2/1977 Beehive's Indicator 8:55 ie d>36 11/2/1977 Beehive's Indicator 14:07 11/2/1977 Castle 11:05 ie 11/2/1977 Depression 14:03 11/2/1977 Grand 15:23 ie 11/2/1977 Plume 9:08 11/2/1977 Plume 9:36 11/6/1977 Castle 15:45 ie 11/6/1977 Dome activePM 11/6/1977 Great Fountain 16:47 11/7/1977 Old Faithful 8:16 4:24 8:10 11/7/1977 Old Faithful 9:34 1:18 3:40 9:22 9:31 11/7/1977 Old Faithful 10:49 1:15 4:13 10:38 10:44 11/7/1977 Old Faithful 12:06 1:17 2:13 11:57 12:02 11/7/1977 Old Faithful 13:00 0:54 4:24 12:53 12:58 11/7/1977 Old Faithful 14:17 1:17 1:47 14:15 11/7/1977 Old Faithful 15:11 0:54 4:59 15:05 15:04 11/7/1977 Old Faithful 16:37 1:26 2:17 16:25 16:27 11/7/1977 Old Faithful 17:32 0:55 4:27 17:25 17:29 11/7/1977 Castle 9:52 ie 11/7/1977 Dome active 11/7/1977 Great Fountain 10:00 ie 11/7/1977 Great Fountain 18:45 ie 11/8/1977 Beehive 13:33 d=4m50 11/8/1977 Beehive's Indicator 13:29 ie 11/8/1977 Castle 13:27 ie 11/8/1977 Fountain 12:30 ie 11/8/1977 Great Fountain 13:00 No Pause 11/15/1977 Dome active 11/16/1977 Old Faithful 7:50 1:51 11/16/1977 Old Faithful 8:36 0:46 4:26 8:32 8:37 11/16/1977 Old Faithful 9:53 1:17 1:56+ 9:42 9:51 11/16/1977 Old Faithful 10:59 1:06 4:34 10:41 10:43 11/16/1977 Old Faithful 12:20 1:21 1:55 12:06 12:14 11/16/1977 Old Faithful 13:10 0:50 4:24 13:00 13:10 11/16/1977 Old Faithful 14:34 1:24 1:54 14:20 14:25 11/16/1977 Old Faithful 15:32 0:58 4:26 15:21 15:24 11/16/1977 Old Faithful 16:47 1:15 2:07 16:41 16:47 11/16/1977 Old Faithful 17:42 0:55 4:20 17:32 17:37 11/16/1977 Old Faithful 18:59 1:17 1:59 18:55 11/16/1977 Castle 7:00 ie 11/16/1977 Castle 16:05 ie 11/16/1977 Depression 13:00 11/16/1977 Dome activeallday 11/16/1977 Lion 7:58 ie 11/16/1977 Lion 9:59 ie 11/16/1977 Lion 13:12 11/16/1977 O.F. SW cone 14:42 11/16/1977 O.F. SW cone 17:14 11/16/1977 Round 10:04 11/16/1977 Spectacle 10:07 minor 11/17/1977 Grand 9:30 ie 11/17/1977 Round 13:18 ie 11/20/1977 Beehive 14:14 d=4m48 low-29 11/20/1977 Castle 8:40 ie high+9 11/20/1977 Grand 14:11 ie 40-45in VC 12/4/1977 Depression 10:18 ie 12/4/1977 Dome active 12/4/1977 Grand 16:46 ie 12/4/1977 Lion 16:51 12/7/1977 Dome active 12/9/1977 Old Faithful 16:46 4:36 16:41 12/10/1977 Old Faithful 12:25 ie with Beehive 12/10/1977 Old Faithful 16:09 ie 12/10/1977 Beehive 12:25 ie with Old Faithful 12/11/1977 Old Faithful 13:38 3:50 13:35 12/11/1977 Old Faithful 14:48 1:10 4:26 14:44 14:48 12/11/1977 Old Faithful 15:59 1:11 3:46 15:58 16:03 12/13/1977 Old Faithful 13:45 ~4:00 13:44 12/13/1977 Old Faithful 14:54 1:09 3:53 14:46 14:57 12/13/1977 Old Faithful 16:04 1:10 4:29 15:59 16:04 12/13/1977 Castle 13:00 ieVR 12/13/1977 Grand 14:06 ie witnessed 2B 12/14/1977 Old Faithful 14:00 ie ~4:00 12/14/1977 Old Faithful 15:07 1:07 1:55 15:05 15:12 12/14/1977 Old Faithful 16:05 0:58 3:40 15:52 15:57 12/16/1977 Old Faithful 12:12 2:07 12:01 12/16/1977 Old Faithful 13:13 1:01 4:50 13:01 13:03 12/16/1977 Old Faithful 14:25 1:12 3:48 14:25 14:29 12/16/1977 Old Faithful 15:38 1:13 4:31 15:30 15:35 12/16/1977 Dome 13:11 ie 12/17/1977 Old Faithful 10:13 3:58 ? 12/17/1977 Old Faithful 11:25 1:12 2:06 11:22 11:25 12/17/1977 Old Faithful 12:18 0:53 4:39 12:12 12:15 12/17/1977 Old Faithful 13:40 1:22 4:11 13:30 13:33 12/17/1977 Old Faithful 14:58 1:18 4:16 14:48 14:51 12/17/1977 Old Faithful 16:10 1:12 4:26 16:01 16:01 12/17/1977 Beehive 17:03 12/18/1977 Old Faithful 9:03 4:08 ? 2campers 12/18/1977 Old Faithful 10:18 1:15 4:35 10:07 10:15 12/18/1977 Old Faithful 11:29 1:11 3:42 11:29 11:32 12/18/1977 Old Faithful 12:44 1:15 4:40 12:32 12:39 12/18/1977 Old Faithful 13:58 1:14 4:08 13:57 14:00 12/18/1977 Old Faithful 15:18 1:20 4:51 15:04 15:10 12/18/1977 Old Faithful 16:29 1:11 3:52 16:22 16:34 12/18/1977 Beehive 13:50 12/18/1977 Depression 12:18 12/19/1977 Old Faithful 8:25 3:35 12/19/1977 Old Faithful 10:11 1:46 2:02 10:03 10:10 12/19/1977 Old Faithful 11:10 0:59 4:16 ? 11:01 12/19/1977 Old Faithful 12:20 1:10 3:55 none 12:23 12/19/1977 Old Faithful 13:31 1:11 3:55 ~13:28 13:32 12/19/1977 Old Faithful 14:55 1:24 4:34 14:42 14:43 12/19/1977 Old Faithful 16:11 1:16 1:56 16:03 16:10 12/19/1977 Old Faithful 16:57 0:46 4:27 ? 17:01 12/19/1977 Old Faithful 18:14 1:17 Long ? 18:12 12/19/1977 Arum 15:27 ~10feet 12/19/1977 Castle 14:15 ie 12/19/1977 Grand 12:10 ie 12/20/1977 Old Faithful 8:35 1:54 8:24 12/20/1977 Old Faithful 9:24 0:49 ~3:56 9:20 9:22 12/20/1977 Old Faithful 10:36 1:12 4:00 10:31 10:36 12/20/1977 Old Faithful 11:54 1:18 4:08 11:47 11:48 12/20/1977 Old Faithful 13:05 1:11 ~1:45 13:05 13:06 12/20/1977 Old Faithful 13:47 0:42 2:40 13:46 13:52 12/20/1977 Old Faithful 15:08 1:21 1:53 15:07 14:42 12/20/1977 Old Faithful 15:59 0:51 4:24 15:58 15:58 12/20/1977 Old Faithful 17:11 1:12 3:58 17:11 17:13 12/20/1977 Beehive 15:29 d=4:23 12/21/1977 Old Faithful 10:12 4:15 10:08 12/21/1977 Old Faithful 11:24 1:12 ~3:59 11:24 11:25 12/21/1977 Old Faithful 12:30 1:06 4:33 12:29 12:34 12/21/1977 Old Faithful 13:53 1:23 4:20 13:45 13:45 12/21/1977 Old Faithful 15:05 1:12 4:10 14:59 15:06 12/21/1977 Old Faithful 16:11 1:06 4:08 16:10 16:17 12/21/1977 Old Faithful ~17:36 ~1:25 short 17:23 12/21/1977 Beehive 8:00 VR 12/21/1977 Castle 12:15 ie 12/21/1977 Fountain 16:30 Snowcoach Rpt 12/21/1977 Grand 17:14 ie 12/21/1977 Riverside 14:30 ieVR 12/21/1977 Riverside 20:50VR 12/21/1977 Spa 16:59 ie 12/22/1977 Old Faithful 8:35 ie long 12/22/1977 Old Faithful 9:55 1:20 4:00 9:49 9:47 12/22/1977 Old Faithful 11:05 1:10 3:32 ? 11:07 12/22/1977 Old Faithful 12:18 1:13 4:10 12:15 12:15 12/22/1977 Old Faithful 13:27 1:09 3:07 13:27 13:30 12/22/1977 Old Faithful 14:47 1:20 4:18 14:32 14:30 12/22/1977 Old Faithful 16:06 1:19 4:12 15:55 16:00 12/22/1977 Old Faithful 17:15 1:09 4:11 ? 17:19 12/22/1977 Beehive 13:45 VR 12/23/1977 Old Faithful ~08:53 short ? heavysnow 12/23/1977 Old Faithful 9:36 ~0:43 4:28 9:22 9:41 12/23/1977 Old Faithful 10:43 1:07 3:30 ? 10:51 12/23/1977 Old Faithful 11:57 1:14 3:53 11:55 11:53 12/23/1977 Old Faithful 13:11 1:14 3:30 13:08 13:08 12/23/1977 Old Faithful 14:21 1:10 4:25 14:14 14:21 12/23/1977 Old Faithful 15:34 1:13 3:37 ? 15:36 12/23/1977 Old Faithful 16:50 1:16 ? ? 16:44 12/23/1977 Dome active 12/23/1977 Lion 9:04 ie 12/23/1977 Vault 12:22 active pm 12/24/1977 Old Faithful 8:48 4:00 12/24/1977 Old Faithful 10:07 1:19 1:36 10:06 9:58 12/24/1977 Old Faithful 10:58 0:51 4:24 10:55 10:53 12/24/1977 Old Faithful 12:20 1:22 4:06 ?12:15 12:13 12/24/1977 Old Faithful 13:33 1:13 3:34 13:25 13:32 12/24/1977 Old Faithful 14:41 1:08 3:30 14:41 14:43 12/24/1977 Old Faithful 15:49 1:08 4:10 15:51 12/24/1977 Old Faithful 17:03 1:14 4:00 17:05 12/24/1977 Old Faithful 19:32 Long 12/24/1977 Old Faithful 20:55 1:23 2:02 20:44 08:44notypo 12/24/1977 Old Faithful 21:39 0:44 ~4:14 ? 21:45 12/24/1977 Castle 13:55 ie 12/24/1977 Castle 23:10 ie 12/24/1977 Grand 15:43 VR 3bursts 12/24/1977 Grand 23:21 4bursts;veryshort pause between d1&d2 F.H. 12/24/1977 Riverside 14:35 VR 12/24/1977 Santa Claus 23:59 ieVR 12/25/1977 Old Faithful 9:10 3:59 12/25/1977 Old Faithful 10:16 1:06 ~2:45 10:22 12/25/1977 Old Faithful 11:35 1:19 4:15 11:16 11:16 12/25/1977 Old Faithful 12:52 1:17 ~3:52 12:41 12:48 12/25/1977 Old Faithful 14:03 1:11 2:01 13:46 14:02 12/25/1977 Old Faithful 14:54 0:51 4:02 14:45 14:53 12/25/1977 Old Faithful 16:11:00 1:17 2:22 15:55 16:06 12/25/1977 Old Faithful 17:05:00 0:54 4:08 17:06 12/25/1977 Old Faithful 18:29:00 1:24 2:03 18:17 12/25/1977 Old Faithful ~19:20 ? 19:19 12/25/1977 Artemisia 15:05 3'surge (Frank) then pool dropped 1.5feet 12/25/1977 Beehive 10:29 d=4:16 12/25/1977 Castle 17:23 12/25/1977 Grand 15:27 2 Bursts 12/25/1977 Riverside 16:57 12/26/1977 Old Faithful 9:10 3:47 12/26/1977 Old Faithful 10:22 1:12 2:10 10:15 10:20 12/26/1977 Old Faithful 11:11 0:49 4:14 11:14 12/26/1977 Old Faithful 12:39 1:28 4:16 12:23 12:24 12/26/1977 Old Faithful 13:52 1:13 1:50 13:46 13:52 12/26/1977 Old Faithful 14:38 0:46 4:37 14:33 14:39 12/26/1977 Old Faithful 15:54 1:16 1:52 15:54 15:53 12/26/1977 Old Faithful 16:50 0:56 4:41 16:46 top of tree 16:42 12/26/1977 Beehive 11:41 d=4:29;with localtremor not felt in VC 12/26/1977 Castle 12:25 VR 12/26/1977 Grand 16:23 4B;d=15:00 12/26/1977 Lion 12:39 ie 12/27/1977 Old Faithful 8:48 4:15 12/27/1977 Old Faithful 10:09 1:21 2:04 9:59 10:01 12/27/1977 Old Faithful 11:00 0:51 4:15 10:59 10:59 12/27/1977 Old Faithful 12:12 1:12 4:12 12:08 12:13 12/27/1977 Old Faithful 13:22:00 1:10 3:24 ~13:20 13:25 12/27/1977 Old Faithful 14:31 1:09 4:27 14:28 14:32 12/27/1977 Old Faithful 15:41 1:10 3:30 15:41 15:46 12/27/1977 Old Faithful 16:52 1:11 3:53 16:51 16:51 12/27/1977 Beehive 10:14 ie 11:27trail Artemisia to Midway now broken 12/27/1977 Castle 11:45 ie minor? 12/27/1977 Grand 9:13:00 12/27/1977 Grand 16:55:00 ie 12/27/1977 Lone Star 12:40 VR d=20min 12/28/1977 Old Faithful ~08:38 ~3:30 12/28/1977 Old Faithful 9:54 ~1:16 2:00 9:48 12/28/1977 Old Faithful 10:52 0:58 4:50 10:50 10:44 12/28/1977 Old Faithful 12:13 1:21 ~4:15 12:03 12:08 12/28/1977 Old Faithful ~13:02 ~0:49 ~3:30 ? 13:26 12/28/1977 Old Faithful 14:23:00 ~1:21 2:06 14:19 14:06 12/28/1977 Old Faithful 15:29:00 1:06 4:30 15:14 15:13 12/28/1977 Old Faithful 16:40 1:11 ~3:15 16:40 16:44 12/28/1977 Beehive 12:10 ie 250snowmobilers at 1423 OF 12/28/1977 Castle 15:20 ie low 3degreesF 12/29/1977 Old Faithful 9:12 4:33 9:08 12/29/1977 Old Faithful 10:40 1:28 1:52 10:27 10:27 12/29/1977 Old Faithful 11:23 0:43 4:12 11:23 11:28 12/29/1977 Old Faithful 12:45 1:22 2:55 12:41 12:35 12/29/1977 Old Faithful 13:43:00 0:58 4:21 13:40 13:43 12/29/1977 Old Faithful 14:05:00 0:22 2:08 14:57 14:57 12/29/1977 Old Faithful 16:03 1:58 4:52 15:56 15:55 12/29/1977 Old Faithful 17:24 1:21 4:00 17:18 17:20 12/29/1977 Old Faithful 19:46 3:25VR 12/29/1977 Beehive 9:30 ieVR low 14F 12/29/1977 Castle 9:30 VR 10:00ie steam 12/29/1977 Grand 15:00 ieVR 3B 12/29/1977 Riverside 14:56 12/30/1977 Old Faithful ~09:21 heavysnow 12/30/1977 Old Faithful 10:36 ~1:15 ~2:15 10:18 10:22 12/30/1977 Old Faithful 11:30 0:54 4:14 11:30 11:26 12/30/1977 Old Faithful 12:44 1:14 ~3:00 12:44 fogsnow 12:43 12/30/1977 Old Faithful 14:06 1:22 1:46 14:00 13:44 12/30/1977 Old Faithful 14:52 0:46 4:38 14:52 14:53 12/30/1977 Old Faithful 16:06 1:14 3:53 16:02 16:07 12/30/1977 Aurum 12:25 SNOW 12/30/1977 Beehive 16:23 high 29F 12/30/1977 Dome active 12/30/1977 Grand 16:30 ie 3B 12/30/1977 Lion 13:30 ie 12/30/1977 Lion 15:00 VR 12/30/1977 Lion 16:36 12/30/1977 Riverside 14:30 VR 12/31/1977 Old Faithful ~08:30 SNOW 12/31/1977 Old Faithful 9:21 ~0:51 4:35 9:13 9:30 12/31/1977 Old Faithful 10:42 1:21 1:47 10:42 10:36 12/31/1977 Old Faithful 11:46 1:04 5:07 11:25 11:29 12/31/1977 Old Faithful 13:04 1:18 4:10 12:55 13:02 12/31/1977 Old Faithful 14:13 1:09 3:45 14:17 12/31/1977 Old Faithful 15:27 1:14 4:00 15:19 15:23 12/31/1977 Old Faithful 16:33:00 1:06 4:04 16:24 16:39 12/31/1977 Castle 12:14 ie ie water