Unit 27
Grass Creek
High-elevation Absaroka terrain with sparse timber, rolling ridges, and challenging access near Wind River country.
Hunter's Brief
Unit 27 spans rugged, mostly high-country terrain between the Greybull and Wind Rivers with scattered timber stands and open ridges. Elevation climbs from around 4,300 feet in the valley bottoms to over 13,000 feet in the Absaroka Range. Access requires patience—602 miles of roads wind through the unit, but density is low and much terrain demands foot travel. Water exists but isn't abundant; springs and small creeks are scattered across basins and ridge systems. This is complex country that rewards thorough planning and strong map reading.
- 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
The Absaroka Range dominates the unit as the primary high-country feature; use it as primary orientation landmark. Key passes—East Fork Pass, Mexican Pass, Bear Creek Pass, and Coal Chute Pass—provide both navigation reference points and logical travel corridors through complex terrain. Washakie Needles and The Holy City serve as distinctive pillars visible from distance for glassing reference.
Major basins (Upper Sunshine, Brown, Grass Creek, Sweetwater) anchor lower elevations and offer navigation targets. Ridge systems including Galena Ridge, Sheep Ridge, and Blue Ridge create natural travel routes. Twin Lakes and Jojo Lake provide water-source navigation aids.
These landmarks help break down the unit's massive complexity into manageable sections.
Elevation & Habitat
Terrain spans from low sagebrush valleys near 4,300 feet up through ponderosa and Douglas fir zones to alpine ridges exceeding 13,000 feet. The median elevation of 6,755 feet places most of the unit in mid-elevation transition country where sagebrush, scattered conifers, and open slopes mix across the rolling terrain. Higher basins like Sunshine and Sweetwater support meadow systems interspersed with timber.
Ridge systems offer open vistas with sparse tree coverage, particularly the Absaroka Range's upper elevations. Lower elevations feature more open country with grass and sagebrush broken by scattered juniper and pine. Habitat diversity compressed into extreme topography creates distinct elevation zones hunters must navigate.
Access & Pressure
Road density is very low despite 602 total miles of roads, indicating rough terrain and significant sections accessible only by foot. Most vehicles concentrate on main drainages and lower basins where roads exist; higher ridges and remote basins see minimal pressure. The complex boundary with the Wind River Reservation creates access confusion that likely protects some areas from casual hunters.
Early-season road quality varies depending on winter conditions and maintenance. Most hunters likely concentrate on valley bottoms and accessible drainages; the high-complexity terrain means thorough route planning and physical fitness separate successful hunters from those struggling with navigation. Limited access actually works in a prepared hunter's favor if willing to work for it.
Boundaries & Context
Unit 27 occupies the country between U.S. Highway 120 and Highway 20, bounded by the Greybull River to the north and the Wind River Reservation to the south. The western boundary follows the drainage divides between the Greybull and Wind Rivers, creating a large, multi-drainage unit that straddles the transition zone between lower valley country and the Absaroka Range. The unit includes non-Indian fee lands within the reservation boundary, adding navigational complexity.
Thermopolis and Meeteetse serve as nearest towns, with several smaller communities (Kirwin, Embar, Hamilton Dome) scattered around the periphery. The varied ownership pattern and reservation boundaries require careful route planning.
Water & Drainages
Water is limited and scattered, requiring advance scouting knowledge. Major drainages—Horse Creek, Galena Creek, Bear Creek, and the East Fork system—flow through key canyons and provide reliable water sources mid-hunt. Smaller creeks (Fall Creek, Blanchette Creek, Reese Creek) supplement drainage water but don't flow consistently all season.
Springs are the critical wildcard: McQueen, Nicholson, Sweetwater, Twin Springs, and others dot the basins, but spring flow varies dramatically with season. Several reservoirs (Anchor, Sunshine, Moon, Grass Creek series) exist but access depends on road conditions and ownership. Plan water strategy carefully—dry stretches are common at higher elevations, and late-season scarcity can restrict range significantly.
Hunting Strategy
Unit 27 holds black bear throughout its elevation range, with spring and fall seasons offering distinct opportunities. Lower sagebrush and timber zones (5,000-7,500 feet) concentrate bears in early season when emerging from winter or feeding on green forage in spring. Mid-elevation basins offer reliable glassing country for spotting bears working open parks and sage flats, particularly in morning and evening hours.
Fall hunting focuses on higher berry-producing country—ridges with huckleberry stands and service berry draws. Upper drainages provide solitude and less pressure. Success depends on thorough basin coverage, water knowledge, and patience glassing open terrain rather than pushing through timber.
High terrain complexity rewards deliberate spot-and-stalk tactics over hiking; study maps to identify gentle benches and open parks where bears concentrate.