Castle Geyser ID: 683 | This file appears in: William Henry Jackson’s Hot Spring and Castle Geyser Source: From the National Parks Service. "Yellowstone National Park: Castle Geyser," available at https://www.nps.gov/features/yell/tours/oldfaithful/castleg.htm. Download Original File SourceFrom the National Parks Service. "Yellowstone National Park: Castle Geyser," available at https://www.nps.gov/features/yell/tours/oldfaithful/castleg.htm. "Castle Geyser" appears in: William Henry Jackson’s Hot Spring and Castle Geyser