Yellowstone National Park is the first national park in the United States. It is located primarily in Wyoming, but also extends into Montana and Idaho.
The park encompasses more than 2.2 million acres of wilderness, making it the largest national park in the Lower 48 states.
It is home to a wide variety of wildlife, including grizzly bears, wolves, bison, and elk.
Yellowstone is also home to some of the world's most incredible geothermal features, including hot springs, mud pots, and the world's tallest active geyser, Old Faithful.