Unit 87

The Wind River Range dominates visually, with the Continental Divide forming a distinct eastern spine. Union Pass offers a major navigation landmark on the divide. Glaciers—Sourdough, Mammoth, Connie, and others—mark high basins for alpine hunters.

Fremont Lake anchors the western lowlands near Pinedale. Multiple passes (Glacier, Stone Pillar, Gunsight, Kagevah) create navigation waypoints through broken terrain. Numerous parks (Spring Creek, Indian, Beaver, Gypsum) offer open glassing zones and water access.

The New Fork River system provides a natural travel corridor through canyon bottoms.

Terrain ranges from high-elevation parks near 7,000 feet to alpine peaks exceeding 13,800 feet, with most country clustered between 8,000 and 9,500 feet. Lower basins like Tosi Creek and Indian Park hold open sagebrush and grassland interspersed with aspen groves. Mid-elevation slopes transition to scattered lodgepole and limber pine with parks and meadows breaking the forest.

Upper slopes and ridgelines grow increasingly alpine, with tundra above timberline. Moderate forest coverage means significant open country for pronghorn throughout the unit, though elevation and terrain create distinct zones.

Nearly 920 miles of roads penetrate the unit, though minimal highway mileage means most are Forest Service tracks requiring high-clearance or foot travel. Highway 191 provides primary access from Cora Junction northward. Darwin Ranch Road and Union Pass Road open interior drainages.

Fair overall accessibility masks terrain difficulty—many roads are rough or seasonal. Pinedale and Cora serve as staging towns. The unit's high complexity score suggests pressure concentrates on lower elevations and accessible parks; upper basins and canyon drainages see lighter use but demand more effort.

Unit 87 encompasses the Upper Green River drainage between Cora and Union Pass, roughly 40 miles north-south. Western boundary follows Highway 191 from Cora Junction northward along the Hoback Rim; eastern boundary traces the Continental Divide from Union Pass southward. The unit wraps around the New Fork River system and includes much of the western Wind River Range foothills.

Highway 351 provides southern access near Pinedale, while Forest Service roads penetrate the interior from multiple directions. Vast public land holdings dominate, making this a genuine backcountry unit despite road infrastructure.

The New Fork River dominates western drainages, flowing southwesterly through canyon country. Boulder Creek and Middle Fork Boulder Creek carve through the northern section, feeding the New Fork. Gypsum Creek, Badger Creek, and Miner Creek branch from higher terrain.

Multiple lakes dot the alpine—Water Dog Lakes, New Fork Lakes, Brook Lake, and Fremont Lake serve as reliable water sources. Springs scattered throughout (Warm Spring, Gypsum Spring, Kendall Warm Spring) supplement. Lower basins hold standing water seasonally.

High complexity means understanding year-round water availability is critical for planning routes.

Unit 87 is pronghorn country, with animals concentrated in sagebrush basins and open parks between 7,500 and 9,500 feet. Early season finds pronghorn dispersed across lower parks and grassland terraces—glass Tosi Basin, Indian Park, and Beaver Park from ridgelines. Mid-season animals move higher as temperatures warm; hunt alpine meadows and ridgetop transitions.

Late season pushes remaining pronghorn into lower drainages and sagebrush country. Water is critical—locate animals near springs and seasonal ponds first, then plan approach around terrain features. The rolling terrain favors glassing from distance; stalking requires understanding wind patterns and terrain funnels.

Terrain complexity demands solid map work before hunting.