Yellowstone National Park is located primarily in Wyoming.

Wyoming, Montana, and Idaho are the three states that make Yellowstone, the world's first national park. But Wyoming is where most of the park is situated. It is well known for its varied wildlife, which includes grizzly bears, bison, and wolves, as well as its geothermal features, such as the Old Faithful geyser. With its geothermal regions, deep gorges, and scenic lakes, Yellowstone is a popular location for outdoor pursuits including hiking, camping, and wildlife observation. The park is a representation of the natural splendor of America and a UNESCO World Heritage Site.