Established in 1857 as the first national park in the United States, Yellowstone has been drawing visitors to its beautiful landscape for over 150 years. Before it became a national park, the region was home to Native Americans for over 11,000 years, including the Shoshone, Lakota, Crow, Blackfoot, Flathead, Bannok, and Nez Perce tribes. Today, tourists come to the park from all over the world to camp and to visit the famous Old Faithful geyser and the Yellowstone Caldera, the largest super volcano in North America. The many animals that live in Yellowstone include bison, black and grizzly bears, elk, wolves, and more than three hundred species of birds. Yellowstone is so large that it has land in three different states -- Wyoming, Montana, and Idaho. Learn the rich history of one of America's most beloved national parks in this book perfect for young explorers.