Running almost 70 miles from Aravaipa Canyon in the north to Benson in the south, this unit has low deserts and rugged, steep and high roadless mountains. Coues deer, mule deer and desert bighorn sheep are mainly found on public land.

Often called the Aravaipa for the wilderness area at its north end, this unit is known for having produced several big desert bighorn sheep and trophy class Coues deer. Hunters also take mature mule deer and antelope bucks. Coues bucks are typically found in high mountains.

Terrain varies from gently sloping desert grasslands at Bonita and Allen Flat to the steep, rugged canyons of Aravaipa Creek and the Galiuro Mountains. High points are in the Winchester and the Galiuro mountains.

Most land is public and is managed by the Coronado National Forest, the BLM and the state. Private land restricts access in some low terrain.

Lowlands are classic Sonoran desert with desert scrub, cactus and grass. Cottonwoods and willows grow along Aravaipa Creek and the San Pedro River. Desert grasslands and oak and juniper woodlands are at middle elevations. Pines and other conifers grow at high elevations in the Galiuro Mountains. Trees and brush are thick in much of the middle and higher elevations.

Most hunters camp on Coronado National Forest, BLM and state lands. Lodging is in Benson, Willcox and San Manuel. Fourmile Canyon Campground is a year-round area located in Klondyke, just 0.75 miles southwest of the site on Fourmile Canyon Road. This is a 10-unit campground with tables, grills, toilets, water and trash cans, but no hookups. Daily fees are charged. Camping also is permitted on adjacent public lands with no facilities.