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USA 2012
Yellowstone National Park
Old Faithful Area
Upper Geyser Basin
Biscuit Basin
Group
Upper Geysers
Biscuit Basin
Group
Midway Geyser Basin
Biscuit Basin
An isolated thermal feature with sinter deposits.
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or click the thumbnails for the large photos
Firehole River
Biscuit Basin
Biscuit Basin
Group
Upper Geysers
Group
Midway Geyser Basin
© 2012 Dirk S. Grossmann