Geyser Activity Transcribed Logbooks and Electronically Collected Data

A log book of geyser activity is kept by park rangers and volunteers at the Old Faithful Visitor Center. The activity reported in this log mainly concerns the Upper, Midway and Lower Geyser Basins but other areas infrequently are included.

Lynn Stephens has undertaken the monumental task of transcribing the handwritten log books onto the computer.

As common courtesy, if you use the data here, you should reference the log book as your source and include thanks to all of those that have contributed to it.

Logbook and Electronic Data

[ 2005 ] [ 2004 ] [ 2003 ] [ 2002 ] [ 2001 ] [ 2000 ] [ 1999 ] [ 1998 ] [ 1997 ]

Electronically Collected Data

[ Summary ] [ 2005 ] [ 2004 ] [ 2003 ] [ 2002 ]

[ EXCEL Data Import Instructions For Comma Delimited Files ]

2005
Old Faithful Visitor Center Geyser Log
Text File	Comma Delimited
January 1, 2005 - October 31, 2005

2004
Old Faithful Visitor Center Geyser Log
Text File	Comma Delimited
January 1, 2004 - December 31, 2004

2003
Old Faithful Visitor Center Geyser Log			Electronic Monitor Data
Text File	Comma Delimited		Steamboat Geyser Old Faithful Geyser Grand, West Triplet and Rift
January 1, 2003 - December 31, 2003 January 1, 2003 - January 31, 2003 February 1, 2003 - February 28, 2003 March 1, 2003 - March 31, 2003 April 1, 2003 - April 30, 2003 May 1, 2003 - May 31, 2003 Junel 1, 2003 - June 30, 2003 July 1, 2003 - July 31, 2003 August 1, 2003 - August 31, 2003 September 1, 2003 - September 30, 2003 October 1, 2003 - October 31, 2003 November 1, 2003 - November 30, 2003 December 1, 2003 - December 31, 2003	Jan. Feb. Mar. Apr. May June July Aug. Sep. Oct. Nov. Dec.

2002
Old Faithful Visitor Center Geyser Log
Text File	Comma Delimited
January 1, 2002 - December 31, 2002 January 1, 2002 - January 31, 2002 February 1, 2002 - March 11, 2002 March 12, 2002 - April 30, 2002 May 1, 2002 - May 31, 2002 June 1, 2002 - June 30, 2002 July 1, 2002 - July 31, 2002 August 1, 2002 - August 31, 2002 September 1, 2002 -September 30, 2002 October 1, 2002 - November 30, 2002 December 1, 2002 - December 31, 2002	January 1, 2002 - January 31, 2002 February 1, 2002 - March 11, 2002 March 12, 2002 - April 30, 2002 May 1, 2002 - May 31, 2002 June 1, 2002 - June 30, 2002 July 1, 2002 - July 31, 2002 August 1, 2002 - August 31, 2002 September 1, 2002 -September 30, 2002 October 1, 2002 - November 30, 2002 December 1, 2002 - December 31, 2002

2001
Old Faithful Visitor Center Geyser Log
Text File	Comma Delimited
January 1, 2001 - December 31, 2001 January 1, 2001 - January 31, 2001 February 1, 2001 - March 31, 2001 April 1 - April 30, 2001 May 1, 2001 - May 31, 2001 June 1, 2001 - June 30, 2001 July 1, 2001 - July 31, 2001 August 1, 2001 - August 31, 2001 September 1, 2001 -September 30, 2001 October 1, 2001 - November 5, 2001 November 15, 2001 - December 31, 2001	January 1, 2001 - January 31, 2001 February 1, 2001 - March 31, 2001 April 1, 2001 - April 30, 2001 May 1, 2001 - May 31, 2001 June 1, 2001 - June 30, 2001 July 1, 2001 - July 31, 2001 August 1, 2001 - August 31, 2001 September 1, 2001 -September 30, 2001 October 1, 2001 - November 5, 2001 November 15, 2001 - December 31, 2001

2000
Old Faithful Visitor Center Geyser Log
Text File	Comma Delimited
January 1, 2000 - December 31, 2000 January 1, 2000 - February 10, 2000 February 11, 2000 - March 11, 2000 March 12, 2000 - April 30, 2000 May 1, 2000 - May 31, 2000 June 1, 2000 - June 30, 2000 July 1, 2000 - July 31, 2000 August 1, 2000 - August 31, 2000 September 1, 2000 -September 30, 2000 October 1, 2000 - October 31, 2000 November 1, 2000 - December 31, 2000	January 1, 2000 - February 10, 2000 February 11, 2000 - March 11, 2000 March 12, 2000 - April 30, 2000 May 1, 2000 - May 31, 2000 August 1, 2000 - August 31, 2000 September 1, 2000 -September 30, 2000 October 1, 2000 - October 31, 2000 November 1, 2000 - December 31, 2000

1999
Old Faithful Visitor Center Geyser Log
Text File	Comma Delimited
January 1, 1999 - December 31, 1999 December 31, 1998 - January 31, 1999 February 1, 1999 - February 28, 1999 March 1, 1999 - March 31, 1999 April 1, 1999 - April 30, 1999 May 1, 1999 - May 31, 1999 June 1, 1999 - June 30, 1999 July 1, 1999 - July 15, 1999 July 16, 1999 - July 31, 1999 August 1, 1999 - August 15, 1999 August 16, 1999 - August 31, 1999 September 1, 1999 - September 15, 1999 September 16, 1999 - September 30, 1999 October 1, 1999 - October 31, 1999 November 1, 1999 - December 31, 1999

1998
Old Faithful Visitor Center Geyser Log
Text File	Comma Delimited
January 1, 1998 - December 31, 1998 January 15, 1998 - January 31, 1998 January 31, 1998 - March 4, 1998 March 4, 1998 - April 30, 1998 April 30, 1998 - May 1, 1998 May 22, 1998 - May 31, 1998 June 1, 1998 - June 11, 1998 June 12, 1998 - June 30, 1998 July 1, 1998 - July 15, 1998 July 16, 1998 - July 31, 1998 August 1, 1998 - August 15, 1998 August 16, 1998 - August 31, 1998 September 1, 1998 - September 15, 1998 September 16, 1998 - September 30, 1998 October 1, 1998 - October 30, 1998 October 30, 1998 - December 30, 1998 Aurum - June 25, 1998 - October 7, 1998 Boardwalk and "Park Place" - July 11, 1998 - October 7, 1998 Depression - June 25, 1998 - October 7, 1998 Grand - October 22, 1998 - December 4, 1998 Lion - June 26, 1998 - October 7, 1998 Old Faithful - December 5, 1998 - December 24, 1998

1997
Old Faithful Visitor Center Geyser Log
Text File	Comma Delimited
January 1, 1997 - December 31, 1997 September 1, 1997 - September 20, 1997 September 21, 1997 - October 19, 1997 December 27, 1997 - January 15, 1998