Unit 22, Colorado

Elevation ranges from approximately 5,300 to 8,900 feet. The northern portion of the unit is lower-relief BLM mesa country with rolling sage flats, while the southern and interior sections rise onto the Roan Plateau proper, which is deeply incised by steep-walled canyons with rimrock cliffs and long finger ridges. Terrain is characteristically semi-arid with rugged canyon topography that can be deceptively difficult to navigate on foot despite appearing open on maps. Roads become muddy and impassable in wet weather; late-season hunting at higher elevations requires tire chains.

GMU 22 is bounded on the north by the White River, on the east by Colorado Highway 13/789, on the south by the White River–Colorado River divide, and on the west by Rio Blanco County Roads 26 and 103, Monument Gulch Road, Colorado Highway 64, and Monument Gulch. The nearest services are in Meeker (~20 miles north), Rangely (~40 miles northwest), and Rifle (~30 miles east). Approximately 74% of the unit is public land: roughly 70% BLM (White River Field Office, 220 E Market St, Meeker, CO 81641) and ~4% Colorado State Land Board. No National Forest lands fall within the unit proper. Primary access arteries are County Road 5 and County Road 20 (Piceance Creek Road), which run north–south through the unit and branch to BLM land at multiple elevations. Many side roads are unimproved dirt suitable for ATVs or high-clearance 4WD. The remaining ~26% private land is concentrated along creek bottoms and the Piceance Creek drainage, creating a checkerboard that can block direct access to adjacent BLM parcels; hunters should verify public-land boundaries on BLM or onX maps. Remote canyon areas are accessible by foot, horseback, or ATV. No designated Wilderness areas fall within the unit. Seasonal road closures apply in spring due to mud; late-season (November) conditions at elevated roads often require tire chains or 4WD.

Lower elevations (5,300–6,500 ft) are dominated by pinyon-juniper woodland and sagebrush flats, with oakbrush filling steep canyon sides and draws. At mid-elevations (6,500–8,000 ft) oakbrush, serviceberry, and pockets of aspen are the primary cover, with aspen stands concentrated on north-facing slopes and canyon heads providing thermal bedding cover. Higher mesa tops carry sagebrush meadows interspersed with scattered aspen and some dark timber (spruce-fir). There is no significant alpine tundra zone; the unit tops out in subalpine terrain. Riparian corridors along Piceance Creek and the White River (northern boundary) support cottonwood-willow habitat. The Piceance Basin's combination of productive browse (oakbrush, sagebrush, serviceberry) and mild winter temperatures makes it critical winter range for regional deer and elk herds.

Mule deer are the most abundant big game and use the Piceance Basin as critical winter range. The White River DAU supports a large combined deer herd (population estimates from pre-2023 data; the 2022–23 severe winter significantly impacted northwest Colorado deer, elk, and pronghorn numbers and CPW has noted a 3–5 year recovery period affecting regional license allocations). Elk are present year-round but peak numbers occur in fall and winter as migrating elk from GMU 32 and adjacent higher-elevation units push down into GMU 22's lower canyon winter range. The migratory pattern is broadly east–west, with summer ranges near the Continental Divide and winter concentration in the Piceance Basin. Elk density in the unit is moderate; hunters on Hunt Talk forums report typical groups of 3–5 animals and note that a portion of the best historical elk habitat has shifted to private land. Shiras moose are present, primarily in riparian zones along the White River and Piceance Creek. Black bear occupy the canyon country and mid-elevation oakbrush/aspen zones. Mountain lion are present throughout the rocky canyon terrain. Pronghorn occur on the lower sage flats, particularly in the northern portion of the unit. Wild turkey inhabit riparian and pinyon-juniper/oakbrush interface zones.