The Upper Geyser Basin map is from Heinrich Koenig's Geyser Information.
[ Grotto Group ]
[ Grotto ] [ Grotto
Fountain ] [ Indicator Spring ] [ Rocket
]
[ South Grotto Fountain
] [ Spa
] [ Startling
]
[ Daisy Group ]
[ Brilliant Pool ] [ Comet
]
[ Daisy
] [ Splendid
]
[ Giant Group ]