Yellowstone National Park
States: Wyoming, Idaho and Montana Established: March 1, 1872 Area: 2,221,766 acres (898,318 ha) History of Yellowstone National Park: Yellowstone National Park (Arapaho: Henihco’oo‘ or Héetíhco’oo) is a national park located primarily in the U.S. state of Wyoming, although it also extends into Montana and Idaho. It was established by the U.S. Congress and signed into law…