Indian reservation in Arizona
Gila River Indian Reservation was a reservation established in 1859[1] by the United States government in New Mexico Territory, to set aside the lands of the Akimel O’odham (Pima) and the Piipaash (Maricopa) people along the Gila River, in what is now Pinal County, Arizona. The self-government of the reservation as the Gila River Indian Community was established by Congress in 1939.