Chickasaw National Recreation Area

Chickasaw National Recreation Area is a national recreation area in the foothills of the Arbuckle Mountains in south-central Oklahoma near Sulphur in Murray County. It includes the former Platt National Park and Arbuckle Recreation Area.Part of the area was established as Sulphur Springs Reservation on July 1, 1902, and renamed and redesignated Platt National Park on June 29, 1906. At the time of its founding, the reservation, later national park, was located in Pickens County, Chickasaw Nation.On March 17, 1976, Platt National Park was combined with the Arbuckle Recreation Area and additional lands and renamed.

Source: Wikipedia