Unit 422

Wagner Basin serves as the unit's geographic centerpiece, a broad valley system that concentrates water and provides natural glassing vantage points. The Sun River marks the western boundary and provides both navigation and water reference. Castle Reef and Grass Hill anchor the southern ridgeline for orientation.

Multiple creeks—Richardson Creek, Battle Creek, Erosion Creek, and Falls Creek—define major drainage corridors that funnel movement and water. Tunnel Lake, Split Rock Lake, and Basin Lake offer water reference points, though some are seasonal. Eagle Point provides a notable cliff landmark on the eastern exposure.

These features create a natural navigation grid across otherwise rolling terrain.

The unit spans lower mountain country from approximately 3,800 feet in the river valleys to over 8,300 feet on ridgetops, though most huntable terrain sits between 4,000 and 6,500 feet. Open sagebrush dominates the valley floors and lower slopes, with scattered ponderosa and Douglas-fir appearing on north aspects and higher benches. Aspen groves dot the draws and creek bottoms, particularly in the cooler drainages like Erosion Creek and Francis Creek.

The sparsely timbered character means good visibility across much of the country—wide-open glassing from ridges down into basins, with occasional timber pockets offering cover and escape terrain. Upper slopes around Grass Hill and Castle Reef transition to steeper, more densely timbered country.

Nearly 180 miles of roads thread through the unit, providing fair-to-good access across most terrain. Highway 287 forms the eastern boundary with town access nearby (Augusta approximately 30 miles south). Sun Canyon Road provides vehicle access into the western drainages, and USFS trails connect the interior (Trail 128 and Trail 223 particularly significant through Blacktail Gulch). This moderate road density means reasonable access without extreme isolation—hunters can stage from vehicles into most major basins within reasonable walking distance. The combination of open country and scattered timber means pressure typically concentrates on accessible drainage bottoms, leaving higher basins and ridges less competed.

Unit 422 encompasses the Teton County terrain between Highway 287 on the east and the Sun River drainage on the west, with Deep Creek anchoring the northern boundary and Sun Canyon Road defining the southern reach. The unit is roughly 20 miles north to south, sitting in the foothills east of the Continental Divide. Wagner Basin dominates the central drainage system, with multiple draws and coulees (Wolf Coulee, Oxheart Coulee, Quigley Coulee, Nunemaker Coulee) branching into the main valley system.

The Sun River forms a natural western boundary where it meets Highway 287, creating a defined hunting area with clear access corridors.

Water is moderately distributed through the unit via a network of year-round and seasonal creeks. The Sun River provides reliable flow along the western boundary, while Francis Creek, Richardson Creek, Battle Creek, and Falls Creek form the primary drainage system feeding Wagner Basin. Erosion Creek and Dog Creek drain the northern terrain.

Multiple reservoirs—Diversion Lake, Pishkun Reservoir—plus natural lakes (Tunnel Lake, Split Rock Lake, Basin Lake) offer water access, though reliability varies seasonally. The Sun River Slope Canal and Pishkun Canal suggest irrigation infrastructure that may affect some water flow patterns. Springs are scattered throughout the drainages, making higher benches and ridges potentially drier in late season.

Unit 422 is mountain sheep country, and the terrain supports glassing-intensive hunting across the open basins and ridgetops. The sagebrush and sparse timber create excellent visibility from ridge systems—hunters can glass Wagner Basin and the surrounding drainages from Grass Hill, Castle Reef, and other high points. Water accessibility around the creeks and reservoirs concentrates movement during dry periods.

Early season focuses on high-elevation summer range around the steeper country; fall patterns shift to intermediate elevations as weather changes. The moderate terrain complexity means patience and careful glassing matter more than bushwhacking—the country rewards methodical coverage from vantage points rather than aggressive driving. Access into the interior drainages via trail or vehicle provides decent staging, but success hinges on finding sheep while they're within glassing range of those vantages.