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Old Faithful: Two Minutes Before Erupting, Upper Geyser Basin, Grand Loop, Yellowstone National Park, Wyoming, USA

Old Faithful's eruptions continue to be some of the most predictable at Yellowstone National Park. Lately there have been 17-20 eruptions/day. Between 4,000-8,000 gallons of water shoot up from below with each eruption. These eruptions can be about 130 feet high. The average length of time between intervals has been 92 minutes. The range of the intervals can be between 45 and 120 minutes. As always, it is spectacular to witness!

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Uploaded on August 23, 2017
Taken on August 13, 2017