Old Faithful is a cone geyser in Yellowstone National Park in W...
wikipedia - 18 Sep 2020Old Faithful is a cone geyser in Yellowstone National Park in Wyoming, United States. It was named in 1870 during the Washburn–Langford–Doane Expedition and was the first geyser in the park to be named.[3][4] It is a highly predictable geothermal feature and has erupted every 44 minutes to two hours since 2000.[5] The geyser and the nearby Old Faithful Inn are part of the Old Faithful Historic District.
