Unit 28-1L

Several named summits anchor navigation: Stormy Peak, Jureano Mountain, Copper Mountain, and Blackbird Mountain serve as visual references from distance. Fishfin Ridge, Gant Ridge, and Trapper Ridge offer glassing opportunities and natural travel corridors. The Yellowjacket Mountains form the unit's backbone with multiple peaks exceeding 9,000 feet.

Devlin Falls and Napias Creek Falls mark key water features in the creek systems. These landmarks are essential for orienting in steep terrain—carry good maps and understand the ridge systems before hunting.

This unit spans from 3,000 feet in lower valley bottoms to nearly 10,000 feet in alpine terrain. The landscape transitions from sagebrush and conifer-mixed lower slopes through extensive mid-elevation timber zones into the high alpine ridges and basins that characterize prime bighorn habitat. Steep slopes dominate throughout—there are few gentle grades.

The forested portions include fir and spruce at higher elevations with scattered timber in parks and benches. Open ridges and alpine basins above timberline provide the expansive vistas and rocky terrain bighorn sheep favor. Most terrain sits between 6,500 and 9,000 feet.

Access is fair but challenging. Nearly 390 miles of forest service roads thread through the unit, but elevation gain, rough conditions, and limited trailheads concentrate hunters into specific corridors. The road network doesn't offer quick access to vast acreage—most hunters walk significant distances once on foot.

The terrain itself provides natural pressure relief: steep slopes and high elevation keep casual hunters out. Early season access may be limited by snow at higher elevations. Plan for multiple-day trips and be prepared for backcountry foot travel.

Unit 28-1L comprises portions of three major drainages across Lemhi and Custer Counties: the Deadwood River drainage upstream from Nine Mile Creek, the Middle Fork Salmon River system, and the South Fork Payette River from Ellis Creek downstream to the Custer County line. The unit encompasses roughly 250 square miles of mountainous terrain anchored by the Yellowjacket Mountains and surrounding high country. Its irregular boundaries follow watershed lines and creek drainages, creating a complex patchwork of public land threading through private holdings.

Geographic reference towns include Leesburg and Blackbird on the western margins.

Water is the limiting factor here. Perennial streams include Moccasin Creek, Little Deer Creek, Lick Creek, and Jefferson Creek—these drainages are critical corridors and water sources. Springs like Mud Lick, Sagebrush Spring, and Hot Springs exist but aren't reliably abundant.

Crater Lake, Golden Trout Lake, and several smaller high lakes (Pony, Dome, Glacier, Deer) provide reliable alpine water in their vicinity but aren't distributed throughout the unit. Sheep concentrate near reliable water sources, making spring location knowledge essential to hunting strategy.

Desert bighorn sheep are the exclusive focus here. Hunt the high alpine ridges, basins, and slopes above 8,000 feet where sheep concentrate. Early season glassing from vantage points like Fishfin Ridge and Gant Ridge can locate sheep on open slopes.

Mid-elevation benches with scattered timber corridors provide transition zones. Water sources become critical late season—sheep must return to reliable springs and creeks. Navigation is challenging with steep, complex terrain—start with detailed topographic maps and understand drainage patterns.

This unit demands fitness, patience, and skill in steep-country hunting. Success depends on glassing, stalking ability, and willingness to cover significant vertical distance.