Yellowstone National Park
Wyoming, Montana, Idaho
Along the Firehole River
Upper Geyser Basin

Fan and Mortar Geysers are in close proximity to one another and almost always erupt in concert. The interval between eruptions ranges from 1-1/2 days to months. Most eruptions last about 45 minutes. Mortar Geyser erupts to heights of 40 - 80 feet while Fan can reach heights of 100 - 125 feet.

Fan Geyser and Spiteful Geyser

Old Faithful Streaming Video Webcam | Original Old Faithful Geyser Webcam

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More Photographs by Steve: Antelope Canyon|Monument Valley

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Copyright © 1995 - 2007 Steve Schmorleitz. All rights reserved.
Revised: March 23, 2008.
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