The Yellowstone Caldera is a volcanic caldera and supervolcano in Yellowstone National Park in the Western United States , sometimes referred to as the Yellowstone Supervolcano . The caldera and most of the park are located in the northwest corner of Wyoming . The major features of the caldera measure about 34 by 45 miles (55 by 72 km). 
Yellowstone National Park is one of the first national parks in the United States. It is home to numerous ecosystems, species of animals, and natural sites to visit, like geysers and hot springs. It is a widely visited and nationally popular tourist site to celebrate the beauty of the natural world. It was the home of Native Americans for over 11,000 years before colonization.