Unit 45
Paint Rock Creek
High Bighorn Mountain terrain spanning sagebrush basins to alpine peaks above timberline.
Hunter's Brief
Unit 45 is Wyoming's most complex elk country, rising from the Bighorn River valley near Worland to Cloud Peak and the alpine Bighorn crest. The terrain divides sharply between open lower elevations with scattered timber and steep, timbered mountain slopes. Access via US-16 and Forest Service roads provides entry, but the dramatic topography makes navigation and hunting physically demanding. Water comes from creeks and scattered springs; the high terrain means significant elevation changes within short distances.
- Compact: under 200 sq mi
- Moderate: 200 - 800 sq mi
- Vast: over 800 sq mi
- Few: under 25%
- Some: 25 - 60%
- Most: over 60%
- Limited: under 0.7 mi/mi² (backcountry)
- Fair: 0.7 - 1.5 mi/mi²
- Connected: over 1.5 mi/mi² (well-roaded)
- Flat: under 20% mountains
- Rolling: 20 - 55%
- Steep: over 55%
- Sparse: under 20%
- Moderate: 20 - 50%
- Dense: over 50%
- Limited: under 0.3% area
- Moderate: 0.3 - 2% area
- Abundant: over 2% area
Terrain Deep Dive
Landmarks & Navigation
Cloud Peak dominates the eastern skyline and serves as the highest landmark for orientation. The Bighorn Mountain crest runs north-south and provides the primary ridgeline for navigation. Major creeks—Canyon, East Tensleep, and Paint Rock—flow west and provide navigation corridors.
Lake-filled basins including Summit Lake, Mirror Lake, and the Tensleep reservoirs offer water reference points. Bald Ridge and Blue Ridge are prominent secondary ridges for glassing. The unit's complexity means landmark recognition becomes critical for backcountry navigation.
Elevation & Habitat
The landscape divides dramatically between low sagebrush basins and high mountain terrain. Lower elevations feature open country with sparse timber and native grasslands along the river and valley floors. Moving upslope, vegetation transitions to scattered ponderosa and Douglas-fir on foothills and mid-elevation slopes.
Higher elevations become increasingly forested with dense stands of spruce and fir, opening into alpine meadows and rocky terrain near Cloud Peak. The vertical relief is severe—nearly 9,300 feet—creating distinct habitat bands compressed into short horizontal distances.
Access & Pressure
Nearly 500 miles of roads provide access, but road density is moderate and terrain-dependent. US-16 offers primary vehicle access via town corridors; Forest Service roads branch into the high country but end at trailheads or management areas. The extreme terrain complexity means most vehicle-based hunters concentrate along main corridors, leaving significant backcountry relatively isolated.
Early season access is straightforward via valley roads; higher elevation access becomes more technical as terrain steepens. The difficulty of the country itself is the primary pressure moderator—fitness and navigation skills matter more than distance from parking.
Boundaries & Context
The unit encompasses the heart of the Bighorn Mountains between Worland and Manderson in north-central Wyoming. Its western boundary follows the Bighorn River and US Highway 16 through town, while the eastern edge traces the Bighorn Mountain crest. The northern boundary runs along the divide between Medicine Lodge and Paint Rock creeks.
This is substantial, mountainous terrain that climbs from river valley to alpine ridge, with access corridors via Cold Springs Road and several Forest Service roads providing entry points from multiple directions.
Water & Drainages
The Bighorn River anchors the western boundary and provides reliable water. Major creeks include East Tensleep, Canyon, Paint Rock, and Lake creeks—all carry water through much of the year. Springs are scattered throughout higher elevations: Sand Springs, Willow Springs, Bonanza Seeps, and others support summer hunting but may be unreliable early and late season.
Numerous reservoirs and lakes offer backup water, though reliability varies seasonally. The terrain's steep nature means water flows quickly; reliable sources concentrate in creek bottoms and established springs rather than scattered locations.
Hunting Strategy
Elk utilize elevation gradients seasonally—early season benefits from high alpine meadows and timbered ridges above 9,500 feet; rut activity concentrates on mid-elevation benches and parks where bulls congregate; late season sees animals dropping to lower sagebrush areas and protected valleys. Hunt strategy depends heavily on season and snow. Early season demands high-country glassing from ridges and aggressive ridge-running where fitness is essential.
Rut hunting favors creek bottoms and park areas where calling works. Late season benefits from lower elevation scouting before snow drives animals to accessible terrain. The unit's complexity means route finding and elevation management are as critical as spotting and stalking skills.