Which U.S. state is home to the famous Yellowstone National Park?

Yellowstone National Park, recognized as the first national park in the United States and often regarded as the first in the world, is primarily located in Wyoming. Established in 1872, it spans over three states: Wyoming, Montana, and Idaho, but the majority of the park lies within Wyoming's borders. The park is renowned for its geothermal features, such as the iconic Old Faithful geyser, as well as its diverse wildlife, including bison and grizzly bears. The significance of Yellowstone extends beyond its beauty; it represents a cornerstone of American conservation efforts and eco-tourism.

Other states listed have portions that might be near Yellowstone but do not contain the park itself. For example, Colorado and Utah are known for their own stunning national parks and landscapes, but neither hosts Yellowstone. Idaho does share a border with Yellowstone and has sections of the park, but it does not contain the bulk of it, making Wyoming the definitive answer regarding the park's location.