Old Faithful
Old FaithfulFrom Wikipedia, the free encyclopedia Jump to: navigation, search For other uses, see Old Faithful (disambiguation).Old Faithful Eruption of Old Faithful in 1948Name originNamed by Henry D. Washburn, September 18, 1870LocationUpper Geyser Basin, Yellowstone National Park, Teton County, WyomingCoordinates44°27′38″N 110°49′41″W / 44.46046°N 110.82815°W..