Unit 31

Reno Hill, Muddy Mountain, and Pine Mountain are the most prominent terrain features, useful for orientation and glassing. Deer Creek Range runs through the unit and provides a spine for navigation. Hat Six Hogback and several named draws (Sensebaugh Canyon, Moonshine Canyon, Hess Draw) serve as recognizable navigation features.

Glenrock, visible on the eastern boundary, provides an obvious reference point. Several reservoirs (Steed Reservoir, Evansville Storage Reservoir) and smaller water features help break up the landscape and offer hunting strategy anchors. Phillips Spring and various named creeks provide secondary reference points for hunters working into remote drainages.

Terrain spans from roughly 5,000 feet in river valleys to 8,750 feet on the higher ridges, with most country falling between 5,500 and 7,500 feet. Lower elevations are dominated by sagebrush and grassland typical of Wyoming foothills; scattered juniper and Douglas fir appear on higher slopes and ridgelines. The forest cover is sparse overall, creating an open-country feel with timber stands concentrated on north-facing slopes and in canyon heads.

This elevation spread produces distinct zones: low sagebrush flats suitable for pronghorn, mixed sagebrush-grass slopes, and sparse-timber ridgetops that offer vantage points. Habitat transitions are gradual rather than dramatic.

Wyoming Highway 251 provides primary access through the unit's core, connecting Casper to the north. Several county roads and ranch roads offer secondary access into drainages and ridgelines, though some may be seasonal or gated. The road network totals over 550 miles within and near the unit, suggesting good connectivity despite the 'Connected' badge referring to broader region access.

Proximity to Casper creates variable pressure—early season and weekends see more traffic near accessible drainages and lower elevations. The moderate complexity terrain and sparse timber mean less cover for hunters seeking to avoid crowds. Higher ridges and side canyons receive less pressure than creek bottoms and main approaches.

Unit 31 is bounded by Casper to the south and east, with the North Platte River forming much of the eastern boundary near Glenrock. Wyoming Highway 251 (Casper Mountain Road) runs through the unit's heart and doubles as the northern boundary in sections. The unit encompasses the foothills and ridgelines west and north of Casper, including terrain around Muddy Mountain, Reno Hill, and the Deer Creek drainage system.

Several small communities—Glenrock, Evansville, and scattered ranch properties—punctuate the landscape. The unit is moderate in size with a moderately complex terrain pattern that blends open country with pocketed timber.

Water is limited and concentrated in specific drainages. Deer Creek is the primary water corridor, flowing southeast and offering the most reliable water source across the unit. The North Platte River bounds the eastern side near Glenrock.

Muddy Creek, Red Creek, and West Fork Deer Creek drain the higher country and hold seasonal water. Several reservoirs (Lamb Upper and Lower, Steed, Sage Creek, Evansville Storage) provide stockwater but are not reliable hunting-season sources for backcountry access. Springs are scattered; Phillips Spring is marked but others require local knowledge.

Much of the ridgeline and higher plateau country will be dry—water strategy is crucial for extended backcountry stays.

Unit 31 is pronghorn country, with open sagebrush and grassland habitat across the foothills and ridgelines. The sparse-timber, rolling terrain makes glassing effective from higher vantage points; Reno Hill, Muddy Mountain, and ridgelines offer good optics platforms. Early season pronghorn typically use lower sagebrush flats and grass parks; as temperatures drop, they may shift slightly higher.

Water-dependent hunting can focus on Deer Creek and smaller drainages during hot spells. The limited water availability actually concentrates pronghorn near reliable sources, making water-hole glassing and drainage hunting viable tactics. Access roads allow hunters to leapfrog into different drainages.

Success depends on thorough glassing, patience, and understanding seasonal movement patterns across the open country.