Unit 77

Fifteen Mile Creek

High-desert basin country with scattered rimrock, sparse timber, and limited water between two major rivers.

Hunter's Brief

Unit 77 sits in the semi-arid basin between the Greybull and Bighorn rivers near Meeteetse—a landscape of low rolling terrain, sagebrush flats, and scattered badlands. Most access comes via U.S. 120 and Wyoming highways 431 and 432, with 310 miles of roads available but limited high-speed connectivity. Water is sparse and concentrated around reservoirs and creek drainages. The country is relatively open for glassing, though breakup terrain around rimrock benches and draws offers cover. Pronghorn are the primary quarry here, using the vast flats and open country typical of the basin.

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Terrain Complexity
4
4/10
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Unit Area
1,128 mi²
Vast
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Public Land
81%
Most
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Access
0.3 mi/mi²
Limited
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Topography
4% mountains
Flat
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Forest
Sparse
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Water
0.2% area
Limited

Terrain Deep Dive

Landmarks & Navigation

Hillberry Rim and Beaver Slide provide major landmarks for orientation and glassing vantage points across the open country. The Badger Creek and Rimrock basins define major topographic depressions useful for navigation. Sawtooth, Sheets Mountain, and Crow Woman Buttes serve as recognizable summits for triangulation.

Fenton Pass offers a natural travel corridor. Multiple named creeks—including Fifteenmile Creek, Crooked Creek, and Buffalo Creek—provide water sources and drainage corridors that concentrate wildlife movement. Hunt Reservoir and Jones Reservoir are key landmarks for locating reliable water in an otherwise sparse landscape.

Elevation & Habitat

Terrain ranges from around 3,800 feet in the river bottoms to 6,700 feet on the higher benches and buttes—a relatively modest spread creating two distinct zones. Most of the unit sits in the lower elevation band: open sagebrush and grassland flats that dominate the basin floor, punctuated by sparse juniper and pinyon scattered across ridges and breaks. The upper elevations support slightly denser timber coverage and include rocky rimrock formations.

Vegetation is adapted to semi-arid conditions with limited precipitation, creating open country ideal for spotting pronghorn across long distances.

Elevation Range (ft)?
3,7866,709
02,0004,0006,0008,000
Median: 4,590 ft
Elevation Bands
6,500–8,000 ft
0%
5,000–6,500 ft
30%
Below 5,000 ft
70%

Access & Pressure

Three hundred ten miles of roads total, but sparse main highway connectivity means much of the unit is accessed via secondary and ranch roads. U.S. 120 provides primary northern access, while Wyoming 431 and 432 serve as entry points from the south and east. The road network is adequate for vehicle access to major drainages and ridges, but terrain around the basin flats and upper benches may require hiking.

Limited access designation reflects that there's no interstate corridor or major highway cutting through the middle; most hunters use day trips from Meeteetse or stage for longer hunts. Pressure is generally moderate, with experienced local hunters knowing the productive areas but room for those willing to explore the quieter edges.

Boundaries & Context

Unit 77 wraps around the Meeteetse area in northwestern Wyoming, bounded north and east by the Greybull and Bighorn rivers. The unit forms a triangular block roughly 50 miles across, enclosed by U.S. 120 to the west and northwest, Wyoming 431 to the southwest, and Wyoming 432 to the southeast. The terrain sits in the Bighorn Basin proper—one of Wyoming's classic pronghorn and mule deer country.

Meeteetse serves as the primary access hub, with surrounding communities offering services and staging points for hunting operations.

Land Cover Breakdown?
Mountains (open)
4%
Plains (open)
96%
Water
0%

Water & Drainages

Water is the defining constraint in Unit 77. The Greybull and Bighorn rivers bracket the unit but may not always be accessible hunting country. Reliable sources include Hunt Reservoir, Jones Reservoir, Crooked Creek Reservoir, and McGee Reservoir—all worth noting on a map. Fifteenmile Creek and its north and south forks provide seasonal flows, as do Crooked Creek, Buffalo Creek, and Rock Waterhole Creek.

Springs exist at Sand Spring, Wilson Spring, Baking Powder Springs, and Parker Springs but may be unreliable during dry periods. Hunt for pronghorn near these water sources; during early season when temperatures are moderate, animals may range far from water, but late season concentrates them near reliable sources.

Hunting Strategy

Unit 77 is pronghorn country foremost. Open sagebrush flats and basin terrain make this ideal for glassing from ridges and buttes—take advantage of Hillberry Rim, Sawtooth, and higher benches to scan the flats below. Early season offers mobility across the country before pronghorn bunch up near water sources.

Mid-season can concentrate animals near reservoirs and creek corridors; focus on Fifteenmile Creek drainage and the Crooked Creek system. Access water sources first, then hunt the terrain between them. The sparse timber around rimrock formations can funnel pronghorn movement, making benches and draws productive ambush locations.

Mule deer inhabit the rougher breaks and timbered areas above the flats. Plan for limited water availability—carry what you need and locate your camp near Hunt or Jones Reservoir.