Unit 510

The Pryor Mountains serve as the unit's geographic anchor, with major summits including Big Pryor, Red Pryor, and East Pryor providing excellent glassing positions and navigation landmarks. Commissary Ridge and Cave Ridge offer additional vantage points. Yellowtail Reservoir dominates the western boundary and provides navigation reference.

Key water features include Roberts Bench and several named flats—Demijohn, Bowler, Tie, and Harsten—useful for orienting movement. Passes like Hatcher and Bobcat provide natural travel corridors. Multiple named creeks and springs (Piney, Deadman Fork, Commissary Creek) serve as navigation guides through the more complex terrain.

Elevations span from valley bottoms near 3,500 feet to ridge summits exceeding 8,700 feet, with most terrain concentrated in the 4,000- to 6,500-foot range. This range creates habitat transitions from semi-arid sagebrush benches and grasslands to juniper and ponderosa forest on higher slopes. The Pryor Mountains dominate the central unit, offering rocky ridges and scattered timber stands.

Lower elevations support sparse forest and extensive sagebrush flats—open country that requires careful glassing and patient movement. The terrain is fundamentally high desert transitioning upslope to piñon-juniper and light forest, with minimal dense timber coverage.

Over 850 miles of ranch roads provide substantial vehicle access throughout lower and mid-elevation portions of the unit. Most pressure concentrates on accessible benchland and near Yellowtail Reservoir, with road-accessible creek bottoms drawing hunters early season. The Pryor Mountains attract foot hunters willing to leave vehicles, offering escape from road-based pressure.

Hatcher Pass and Bobcat Pass provide established access corridors. Unit size and moderate terrain complexity mean that hunters venturing beyond main drainages and road systems encounter significantly less pressure. The connected road network benefits planning access routes, but popularity of accessible areas creates incentive for higher-elevation and ridge-country exploration.

Unit 510 occupies foothill country in south-central Montana spanning portions of Bighorn, Carbon, and Yellowstone Counties. The western boundary follows Yellowtail Reservoir's shoreline, with the Crow Reservation forming the northern limit and the Wyoming border defining the southern edge. The unit encompasses roughly 280,000 acres of semi-arid transitional terrain between valley floor and higher mountain country.

Several small communities—Belfry, Bowler, and Wade—provide nearby staging points. The landscape is characterized by open benches, sagebrush flats, and moderate ridgelines rather than high alpine terrain, making it distinct from steeper mountain country to the north.

Water is limited and concentrated in specific drainages. Piney Creek and the Deadman Creek system (North and South Forks) represent the most reliable perennial flows. Yellowtail Reservoir provides consistent water on the western boundary but requires reaching the shoreline.

Multiple documented springs—Roberts, Bent, Trappers Cabin, Bear, Teeples, and Tony Island—offer critical water sources for backcountry travel. Seasonal creeks and irrigation ditches (Rocky Point, Holland, Youst Ditch system) exist but aren't dependable during late season. Plan water sources carefully; carrying capacity matters in this semi-arid country, and knowing spring locations separates successful hunts from dry camps.

Unit 510 historically supports black bear, with habitat suited to hunting spring and fall seasons. Spring bears emerge from winter into lower sagebrush benches and canyon bottoms where green vegetation appears first; glassing open flats and ridges for feeding bears during morning and evening hours is primary method. Piney Creek and Deadman Creek drainages attract bears moving between elevation zones.

Fall hunts focus on higher ridges and timber stands where bears feed on chokecherries, berries, and mast crops. The sparse forest coverage requires careful glassing and quiet stalking; this isn't thick-timber bear country. Water sources—springs and creeks—concentrate movement patterns and offer setup opportunities.

Success depends on covering ground methodically and reading wind carefully through variable terrain.