Major County, Oklahoma
…miles (2,470 km2) are land and 3.0 square miles (7.8 km2) (0.3%) are covered by water. Eagle Chief Creek, which empties into the Cimarron River near Cleo Springs, was known to the Cheyenne people as Maheonekamax. A large gypsum formation extends across much of western Oklahoma, and the Ames Structure, which is…