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`Old Faithful` about to erupt, Yellowstone #81276899
Description
Steam pouring out from the mudhole indicating that geyser Old Faithful is about to erupt.Old Faithful in Yellowstone National Park, first received its name in 1870. The geyser erupts at intervals of about 90 minutes, and at its peak spouts 3700 to 8400 gallons of boiling water to a height of 106 to 185 feet. This lasts for about 3 minutes, after which it subsides, but continues to pour out steam.