Unit 15

Southeast Wyoming

High plains and scattered buttes spanning the Cheyenne Basin between Nebraska and Colorado borders.

Hunter's Brief

Unit 15 is a sprawling high-plains landscape dominated by open grassland, rolling terrain, and isolated rocky outcrops. Elevations range from around 4,000 feet in the lower basins to just over 6,400 feet on the highest ridges, with most country sitting in the mid-5,000s. Access is fair with an extensive network of ranch roads and county routes, though much of the best hunting terrain crosses private land. Water is scarce—scattered reservoirs, seasonal springs, and creeks provide limited options. Both mule deer and whitetails inhabit the sagebrush flats and draws; mule deer prefer the rougher terrain while whitetails favor creek bottoms and brushy drainages.

?
Terrain Complexity
3
3/10
?
Unit Area
5,296 mi²
Vast
?
Public Land
11%
Few
?
Access
1.0 mi/mi²
Fair
?
Topography
1% mountains
Flat
?
Forest
1% cover
Sparse
?
Water
0.4% area
Moderate

Terrain Deep Dive

Landmarks & Navigation

Register Cliff and Pine Bluffs provide the most distinctive visual anchors for orientation and long-range glassing. The Wildcat Hills and Rawhide Buttes offer higher vantage points for scanning open country. Pine Ridge runs northeast and serves as a natural travel corridor and dividing feature.

Hell Gap, Hell Canyon, and the various draws (particularly Ninemile, Lewis, and Sparks Canyon) funnel deer movement and provide cooler, brushier travel routes. Guernsey Reservoir and Grayrocks Reservoir mark reliable water sources visible from distance. The North Platte River corridor, though often running through private land, guides navigation in the western portions.

Elevation & Habitat

The unit sits almost entirely between 4,000 and 6,500 feet, making this a lower-elevation hunting ground dominated by short-grass prairie, sagebrush flats, and scattered juniper. The Rawhide Buttes, Wildcat Hills, and Pine Ridge provide the roughest terrain and highest points; elsewhere the country rolls gently or spreads flat. Vegetation is sparse overall—open grassland predominates, with heavier brush concentrated in draws, creek bottoms, and along the scattered rim formations.

The lack of extensive forest means plenty of glassing country, though cover for stalking can be limited. Seasonal transitions are pronounced; summer heat and winter snows significantly influence deer movement and distribution.

Elevation Range (ft)?
4,0166,457
02,0004,0006,0008,000
Median: 5,007 ft
Elevation Bands
5,000–6,500 ft
51%
Below 5,000 ft
50%

Access & Pressure

The unit contains 5,400+ miles of roads, creating a fair-to-good access network, though much routes across private land with permission requirements. County roads connect towns and provide vehicle access to many ridges and flats. The Interstate corridor, U.S. 20, and U.S. 26 facilitate access from Cheyenne and surrounding areas, meaning moderate hunting pressure, particularly early season and weekends.

Much of the accessible public-land hunting centers on the rougher terrain around the buttes and ridges. Private-land pressure varies; some ranches are open to hunters while others are closed. The vast size and relatively straightforward terrain mean solitude is possible if you avoid main drainages and high-traffic areas near roads.

Boundaries & Context

Unit 15 encompasses the high plains country anchored by Cheyenne to the west and the Wyoming-Nebraska border to the east, with Colorado's northern boundary forming the southern edge. The North Platte River defines much of the western corridor while Interstate 25 traces the western spine. This vast, relatively low-elevation basin country is characterized by wide-open grasslands punctuated by scattered buttes, ridges, and draws.

The unit straddles the transition between the Great Plains and the Rocky Mountain Front, creating terrain that's fundamentally prairie with pockets of rougher, dissected country. Towns like Chugwater, Guernsey, and Cheyenne serve as logical supply and staging points.

Land Cover Breakdown?
Mountains (forested)
0%
Mountains (open)
1%
Plains (forested)
1%
Plains (open)
98%
Water
0%

Water & Drainages

Water is the limiting resource in Unit 15. The North Platte River runs along the western boundary but much of it flows through private ground. Chugwater Creek and Clear Creek are the most substantial drainages; both have seasonal reliability and attract deer, especially whitetails. Reservoirs including Guernsey, Grayrocks, and Terry provide reliable but often distant water.

Springs scattered throughout—Wolf Spring, Warm Springs, State Line Springs, and others—are critical for planning hunts but often require local knowledge to locate. Seasonal creeks and stock ponds supplement options. Water scarcity makes scouting previous trips invaluable; knowing where deer water during each season dictates hunting location choices.

Hunting Strategy

Mule deer in this unit favor the broken terrain—the Rawhide Buttes, Pine Ridge, and dissected draws where they can bed in brush and escape to higher ground. Glassing from ridges and buttes is effective given the open terrain. Whitetails concentrate in creek bottoms and draw systems, particularly Chugwater Creek, Clear Creek, and the smaller drainages where willows and brush provide cover.

Early season sees deer distributed broadly; rut activity concentrates animals in specific corridors and draws. Late season pushes deer toward lower elevations and reliable water sources. The sparse forest and open plains mean you're hunting visible country—glassing, long-range observation, and understanding water and seasonal movement patterns are more critical than traditional timber-stalking skills.

Focus on transitions: where draws meet flats, where brush meets open grassland.