Castle Geyser erupting, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

algae castle geyser color image day environment erupting geology geyser heat horizontal hot spring national park nature nobody north america outdoors photography remote spraying steaming travel travel destinations unesco world heritage site united states upper geyser upper geyser basin wyoming yellowstone yellowstone national park america american americas color colour daytime erupt eruption hot isolation outside park seclusion spray steam us usa united states of america us usa water wy