Firehole Spring in Lower Geyser Basin, Yellowstone National Park, Wyoming, USA

america american area areas attraction attractions basin bodies body calcification calcifications chalk conservation countryside cultural energy exterior exteriors firehole geothermal geothermic geyser geyser geysers heritage hot hot spring hot springs in landscape landscapes lime limestone limestone lower national national natural nature nobody north of outdoor park park parks photo photos pond ponds pool pools power preserve preserves reserve reserves rock sanctuaries sanctuary scenery scenic sediment sedimentary sedimentation sediments seeing shot shots sight sights site sites source sources spring spring springs states stone thermal tourist united usa water waters well wells wildlife world worth wyoming yellowstone