This unit, mostly on the Yuma Proving Grounds east of the Colorado River, has a stable herd of desert bighorn sheep and some mule deer. Reports show that over three years, all hunters have taken rams scoring an average of 160" B&C.

Hunters have an excellent opportunity to take a trophy desert bighorn. Mule deer numbers are low but slightly increasing with big, mature bucks residing in desert flatlands. There is also excellent wingshooting available for dove, quail and waterfowl.

Large, rocky arroyos separate rugged mountains east of the Colorado River, the western boundary of the unit.

Some of the unit consists of BLM land, limited state ground and two national wildlife refuges where hunting is allowed, but most of the unit is in the U.S. Army’s Yuma Proving Ground (YPG). Much of the YPG is closed to hunting, but the Army allows hunting on part of the range and charges hunters a fee for an access permit.

Heavy vegetation grows along the Colorado River. Creosote brush, mesquite, palo verde and other desert trees and shrubs along with saguaro and other cacti grow on flats, hills and mountains.

Most hunters camp along dirt roads. Hunters find lodging and other services are in Yuma, Quartzsite and Martinez Lake. Some hunters stay in developed campgrounds. These three each have a store, restaurant, gasoline pumps, boat ramps and docks: