Established in 1872, Yellowstone National Park is America's first national park. It is the oldest park in the United States park system.
Located in Wyoming, Montana, and Idaho, it is home to a large variety of wildlife including grizzly bears, wolves, bison, and elk.
Each year, it draws 3 million visitors.
They come to experience the park's restless geology; to see herds of buffalo, gray wolves,
grizzlies.
