Unit 99

Big Sandy Mountain, Mt. Nystrom, and East Temple Peak serve as dominant landmarks visible for miles and essential for navigation. The Continental Divide itself functions as the unit's primary navigational spine; Sagebrush Ridge offers mid-elevation glassing opportunities.

Prospect Mountains anchor the eastern terrain. Lakes including Big Sandy Lake, Little Sandy Lake, and Temple Lake provide water reference points; numerous named creeks—Sagebrush Creek, North Creek, Trail Creek—serve as travel corridors and drainage guides through the complex terrain. Big Sandy Opening and Jensen Meadows offer natural gathering areas.

The unit spans from valley floors near 6,500 feet to alpine peaks exceeding 13,000 feet, creating distinct habitat zones. Lower elevations hold sagebrush flats and scattered juniper; mid-elevations transition to ponderosa and Douglas-fir stands mixed with open parks and meadows. Upper elevations feature spruce-fir forests with persistent snowfields and tundra-like terrain on the highest ridges.

The sparse forest cover means much of the country remains open sagebrush and grass, particularly in the valley systems and on exposed ridges—good glassing terrain but offering limited shelter from weather.

The 275 miles of roads are sparse across this vast terrain, creating a low-density access network. Most developed access clusters near valley entrances—Farson, Elkhorn Junction, and Temple Creek Summer Home Area—while the high country remains road-free or accessible only by rough jeep trails. This combination means pressure concentrates on lower elevations and accessible drainages early season, leaving substantial backcountry relatively uncrowded for hunters willing to hike.

The challenge isn't outrunning pressure but rather getting to reliable water and elk habitat with limited trail infrastructure.

Unit 99 occupies a large swath of southwestern Wyoming between Highway 191 on the west and the Sweetwater River drainage on the east, anchored by the Continental Divide running through its northern section. The unit encompasses upper Big Sandy River country, Eden Valley, and the Prospect Mountains. Mt.

Nystrom and Sweetwater Gap mark key boundary points; the terrain transitions from irrigated agricultural valleys at lower elevations to alpine ridges and basins at the high end. This is remote, high-country territory with limited development and substantial public land.

Water is limited and scattered, making it the primary constraint in hunting this unit. Big Sandy River flows north to the reservoir; Sweetwater River drains the eastern section. Mid-level reliability comes from named springs including Chicken Spring, Monument Spring, and Halls Meadow Spring, though seasonal fluctuation is likely.

Lakes exist (Big Sandy, Little Sandy, Temple, Clear, Frozen) but may not be reliably accessible from hunting camps. Creeks dry down in late season. Hunters must plan water resupply carefully and consider early-season timing or high-elevation camps near persistent snowmelt when available.

Unit 99 is elk country spanning diverse elevations, demanding a flexible seasonal approach. Early season targets high-country meadows and parks where herds move before pressure; mid-elevation sagebrush parks hold elk during warm weather. Rut hunting focuses on timbered draws and aspen groves where bulls congregate with cows—particularly in the Prospect Mountains and upper drainages.

Late season pushes herds toward lower sagebrush and valley systems. Success requires understanding water placement; concentrate glassing on terrain near dependable springs and creeks rather than spreading effort across vast dry ridges. Pack in with reliable camp water or hunt early when snowmelt is available.

The terrain's complexity rewards detailed map work and willingness to move camps to follow seasonal patterns.