Unit 41, Idaho

The unit encompasses approximately 1,541,701 acres (roughly 2,409 square miles) of high desert terrain. Elevation spans approximately 2,700 to 7,800 feet. The topography is predominantly flat to gently rolling basalt plateau, cut by deep, steep-walled canyons carved by the Owyhee River, Bruneau River, West Fork of the Bruneau River, and Jarbidge River. The canyon walls range from vertical cliffs to steep grassy slopes. The plateau surface is largely open rangeland (90.75% of the unit's land cover), with narrow riparian corridors threading through the canyon bottoms.

The unit is accessed primarily via Idaho Highway 51 (the main north-south corridor, running from Bruneau south to the Nevada line) and State Highway 78 (northwest boundary near the Snake River). Key access routes to wilderness areas include: Hot Springs Road east from Bruneau (approximately 15.6 miles to the Bruneau River wilderness kiosk); Mud Flat Road east from Grandview (approximately 20 miles to Little Jacks Creek and Big Jacks Creek wilderness trailheads); Boney Lane to 45 Ranch Road from Highway 51 for Owyhee River canyon access (requiring high-clearance 4WD). Most private land is concentrated in the northern portion near the Snake River and C.J. Strike Reservoir. The unit contains four BLM-designated wilderness areas totaling approximately 188,810 acres (12.25% of the unit) where motorized and mechanized equipment is prohibited: Bruneau-Jarbidge Rivers Wilderness (64,706 acres), Big Jacks Creek Wilderness (56,546 acres), Little Jacks Creek Wilderness (54,935 acres), and Owyhee River Wilderness (12,623 acres). Managed primarily by the BLM Bruneau Field Office (208-384-3300) and BLM Jarbidge Field Office (208-735-2060). The Diamond A area between the Bruneau and Jarbidge rivers was reassigned from GMU 41 to GMU 46 in 2022. No Access Yes! properties are currently listed in Unit 41. No National Forest lands exist in the unit.

The dominant cover type is sagebrush-steppe and greasewood across the basalt plateau. Low shrubs and bunchgrasses characterize most terrain. Junipers, aspens, and maples appear at higher elevations (above approximately 6,000 feet). Canyon bottoms and riparian corridors support cottonwood, willow, and other water-dependent species. Upland areas support sage-grouse habitat. Irrigated agricultural land accounts for a small fraction of the northern portion near the Snake River. All significant public land is BLM-administered desert and canyon habitat; no National Forest lands exist in the unit.

Unit 41 supports mule deer across the plateau and canyon country; white-tailed deer are present in low numbers along the Snake and Bruneau river corridors. Elk inhabit the unit in stable and growing herds; the Owyhee Elk Zone is managed exclusively via controlled hunts with no general season, focused on mature bulls and antlerless harvest to manage growth. Pronghorn antelope occupy the open desert plateau and are managed via controlled draw only. California bighorn sheep inhabit the canyon rims and rocky terrain; a population was augmented by a transplant of 30 animals from Oregon, and the hunt was closed as of 2026 pending herd establishment. Mountain lion and gray wolf are present and huntable. Upland birds include chukar, quail, sage-grouse, sharp-tailed grouse, gray partridge, pheasant, and dove. Waterfowl (ducks, geese) and small game (rabbits, hares) are also present. Mule deer rut typically runs from late October through late December.