Tourist observes eruption of Castle Geysir, Yellowstone National Park, Wyoming, USA, North America

activity age 23 years female american americas attraction castle geyser caucasian ethnicity cone shaped eruption female hiker female tourist female geothermal area geothermal power geothermal geyser hiker hike hot landscape conservation area leisure mineral deposit nature tourism one person on the way outdoors out person recreational activity reserve spring thermal spring tourism touristic tourist travel upper geyser basin us american usa volcanic cone watch waters water woman wyoming yellowstone national park