Upper Geyser Basin, Yellowstone National Park, Wyoming, USA
Old Faithful is a iconic world famous cone geyser located in Yellowstone National Park. It is a highly predictable geothermal feature; since 2000, it has erupted every 44 to 125 minutes.
The geyser, as well as the nearby Old Faithful Inn, is part of the Old Faithful Historic District. Old Faithful was named in 1870 during the Washburn-Langford-Doane Expedition and was the first geyser in the park to receive a name.
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