Unit 28-2

Iron Mountain, Sheephorn Mountain, and Napoleon Hill serve as major visual reference points for glassing and navigation across this broken terrain. The Hat Creek Lakes basin, Iron Lake, and Wallace Lake provide landmark orientation in the higher country. Key ridgelines including Pine Creek Ridge and Napoleon Ridge form natural travel corridors and vantage points.

Numerous named summits—Taylor Mountain, Twin Peaks, King Mountain, Baldy—offer glassing prospects. Williams Creek Summit and similar passes break the high country into recognizable sections. These landmarks help navigate the complex drainage system and identify productive sheep terrain within the larger unit.

Terrain spans from mid-elevation valley floors around 3,300 feet to alpine summits approaching 10,000 feet, with the median sitting in productive mid-elevation country around 6,500 feet. This elevation spread creates distinct habitat zones: lower drainages support mixed forest and brush; mid-elevations transition through ponderosa and Douglas-fir forests; upper slopes open into alpine meadows and rocky ridges where bighorn sheep concentrate. The moderate forest coverage and steep topography create the classic sheep habitat pattern—forested lower drainages giving way to open high country with excellent escape terrain.

Elevation shifts are dramatic and consistent throughout the unit.

Over 700 miles of road network provides access to multiple valley entry points, but road density remains relatively low given the unit's size and complexity. Most roads follow major river bottoms and tributary valleys; high-elevation sheep terrain requires leaving vehicles and going to foot. Primary access corridors are Deadwood River drainage, Middle Fork Salmon approaches, and South Fork Payette valley routes.

Connected access means multiple entry options, but the steep terrain and limited road penetration into sheep country ensure that pressure concentrates on accessible valley approaches. Backcountry travel and pack support separate serious sheep hunters from day-trip traffic.

Unit 28-2 occupies a significant portion of Lemhi and Custer Counties in central Idaho, defined by major drainage boundaries including the Deadwood River, Middle Fork Salmon River, and South Fork Payette River systems. The unit wraps around multiple tributary drainages and their watersheds, creating a complex, multi-drainage hunting area. Williams Lake Resort marks a reference point in the northern section.

The steep terrain complexity score of 7.7 reflects the significant elevation gain and mountainous character throughout. This is legitimate backcountry territory where drainage systems define navigation and movement patterns.

Water is the defining constraint here. Major streams—Boulder Creek, East Boulder Creek, Moose Creek, Park Creek, Beartrack Creek—flow through primary drainages and provide reliable water at lower elevations. At higher elevations, scattered springs including Sheephorn Spring, Magpie Spring, and Corbett Spring are critical for sheep movements and camp locations.

The drier upper plateaus and ridges require careful water planning; sheep often concentrate near spring sources, particularly during late season. Seasonal creeks dry by mid-summer in many locations. Understanding spring locations and stream flow timing is essential for planning sheep hunts in this country.

Bighorn sheep are the target species in this unit, and terrain dictates tactics entirely. Productive sheep country concentrates in high, broken ridges and alpine basins above timberline—Iron Mountain, Sheephorn Mountain, and the ridge systems offer the best glassing and movement terrain. Early season hunts access higher elevations where sheep migrate into open country.

Late season drives animals lower into forested areas and side drainages. Spot-and-stalk is the primary tactic—locate sheep from distance using high vantage points, then plan approaches using terrain to break sightlines. Water access becomes the limiting factor late season; hunters should focus glassing efforts around known spring locations.

This terrain demands excellent physical conditioning, map reading, and mountain skills.