YELLOWSTONE NATIONAL PARK
The World's First National Park.
On March 1, 1872, Yellowstone became the first national park for all to enjoy the unique hydrothermal and geologic features. Within Yellowstone's 2.2 million acres, visitors have unparalleled opportunities to observe wildlife in an intact ecosystem, explore geothermal areas that contain about half the world’s active geysers, and view geologic wonders like the Grand Canyon of the Yellowstone River.
Yellowstone National Park has rich human and ecological stories that continue to unfold. People have spent time in the Yellowstone region for more than 11,000 years. Many tribes and bands used the park as their home, hunting grounds, and transportation routes prior to and after European American arrival. Yellowstone was established as the world's first national park in 1872.