The range lies about 60 miles northeast of Yuma in the southwestern part of the state.

These are relicts of the ice age when the range of California fan palms was much larger than its isolated groves today.

The closest community to the Kofa Mountains is Quartzsite, 30 miles northwest on Interstate 10.

The wildlife refuge and the mountains are some of the hottest areas in the southwest Sonoran Desert.

[2] The Kofa, Arizona post office was established June 5, 1900 and was discontinued August 27, 1928.