Unit 107

Granite Peak and the surrounding high ridges serve as the primary navigation anchor, visible from much of the unit and marking the divide between Sweetwater and Rock Creek drainages. Anderson Ridge and the Sweetwater Needles provide additional reference points for glassing and route finding. Key valleys and gulches—particularly Palmetto Gulch, Palmer Draw, and Oregon Gulch—funnel water and game movement between the higher parks and lower drainages.

The Three Forks-Atlantic City Road (BLM 2317) and Oregon Buttes Road (Fremont County 445) provide main access corridors and serve as practical staging points for hunting the surrounding country.

Terrain ranges from 7,200 feet in the river bottoms to over 12,400 feet at the highest ridges, creating pronghorn habitat that transitions from sagebrush parks at mid-elevation to more scattered timber higher up. Most of the unit sits above 7,500 feet where pronghorn concentrate in open parks, ridge systems, and the natural meadows scattered throughout the drainages. Sparse forest coverage means visibility is good across much of the country, though dense patches near creeks and in protected gulches provide cover.

The landscape is primarily rolling to steep terrain with open slopes that funnel pronghorn movement along predictable corridors between seasonal ranges.

The unit has fair accessibility with 157 miles of road, though complex terrain means road density is moderate rather than concentrated. Main access follows WY Highway 28 from the south and the BLM/County road network from multiple directions. Pressure concentrates along the main drainages and near established trailheads; however, the unit's terrain complexity (8.3/10) means hunters willing to leave roads and glass from ridge systems can find quieter country.

Most hunters focus on accessible creek drainages and meadow systems; the steep, broken ridge country attracts fewer people despite holding pronghorn.

Unit 107 occupies the high-elevation country between the Sweetwater River to the south and east and the Popo Agie drainage to the north. Wyoming Highway 28 crosses the southern boundary at the Sweetwater River; the unit's eastern limit follows Rock Creek down to the same river, while the western edge runs along the Continental Divide and Oregon Buttes Road system. The unit encompasses the ridge and basin country surrounding South Pass City and the mining history corridors of the Atlantic City area.

Total size is moderate, with boundaries following natural drainages and established road corridors rather than arbitrary lines.

Water is limited but reliable where it exists. The Sweetwater River and its East Fork form the primary water features, joined by multiple named creeks including Gold Creek, Pool Creek, Jack Creek, and Mill Creek that drain the ridges. Springs—notably Tabor Spring, Oregon Spring, and Dickie Springs—provide critical summer water sources; hunting pressure often concentrates near these reliable points.

During fall, pronghorn dispersal to lower elevations follows water availability, making creek bottoms and seep areas important ambush locations. Burn Ranch Ditch, Rock Creek Ditch, and other ditch systems in the flatter sections indicate historical water development.

Unit 107 offers pronghorn hunting across elevation transitions that create distinct seasonal patterns. Summer finds pronghorn in the higher parks and ridge systems above 8,500 feet where visibility allows long-range glassing. Early season requires patience; hunting open ridges and parks at dawn and dusk pays off.

Fall migration brings animals lower into the sagebrush and meadow country, particularly concentrating near water sources as elevation becomes a factor. The creek drainages—Sweetwater, Rock Creek, and the tributary system—serve as travel corridors; stalking approaches work well in broken terrain along these valleys. Expect to cover significant country; this unit rewards effort and elevation gains.