Tourists on boardwalk, steaming geothermal springs, geysers, Yellowstone National Park, Wyoming, United States of America, USA

america american area areas attraction attractions being beings boardwalk boardwalks conservation day daylight daytime dock docks during energy exterior exteriors famous footbridge footbridges geothermal geothermic geyser geysers hot hot spring hot springs human humans known national national natural nature north of on outdoor park park parks people person persons photo photos pier piers power preserve preserves renowned reserve reserves sanctuaries sanctuary seeing shot shots sight sights site sites source sources spring springs states steam steaming the thermal tourism tourist touristic touristical touristically tourists tourists touristy united us us american usa well well known wells wildlife wood wooden worth wyoming yellowstone