Coolidge is near the southwestern end of the Gila River Reservation and close to the Casa Grande Nat. Monument, about half way between Phoenix and Tucson. The Zuñi Reservation is a long ways off to the northeast, but that doesn't mean there isn't a Zuñi well near to Coolidge. An example is the town of Aztec in northern New Mexico, a hell of a long way from the Valley of Mexico.