The Chocolate Mountains of Arizona, USA, are located in the southwestern part of the state east of the Trigo Mountains and southwest of the Kofa National Wildlife Refuge. The mountains are located about east of the Chocolate Mountains of California, but the two ranges are not connected. The range in Arizona lies in a southwest-northeasterly direction west of Highway 95 on the U.S. Army Yuma Proving Ground. This area is patrolled by the Military Police from Marine Corps Air Station Yuma. See also The Chocolate Cliffs are one of several parallel lines of bluffs that form the Grand Staircase in Utah. Mountain ranges of the Sonoran Desert Mountain ranges of the Lower Colorado River Valley Mountain ranges of La Paz County, Arizona Mountain ranges of Arizona