Unit 513
5
High-country alpine terrain above Absarokee with glacial lakes, steep drainages, and limited road access.
Hunter's Brief
Unit 513 is rugged, high-elevation country spanning the divide between the Rosebud River valleys south of Absarokee. Terrain ranges from rolling mid-elevation benches to steep alpine peaks topping 12,600 feet. Access is challenging—sparse road network and significant elevation gain limit where most hunters venture. Water comes from lakes and reliable springs, though availability varies seasonally. This is terrain complexity at its peak: big, steep, and demanding. Moose country here means high country basins and willow-choked drainages.
- 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
Cathedral Peak and Granite Peak serve as unmistakable summit references from anywhere in the unit. McDonald Basin and Dean Basin anchor major drainage systems worth using for navigation and access planning. Pentad Lake, Lake Pinchot, and the Wildcat Lakes provide visible landmarks at higher elevations.
Lightning Creek, North Fork Wounded Man Creek, and Cathedral Creek cut major drainages offering natural travel corridors down from alpine terrain. Fishtail Plateau and Big Park offer open reference points and potential glassing benches. Jordan Pass provides a named geographic transition worth knowing.
Buffalo Jump and Cathedral Point are distinctive features that aid orientation in the upper country.
Elevation & Habitat
Terrain rises sharply from around 4,000 feet in the lower Rosebud valleys to above 12,600 feet on Granite Peak and surrounding summits. Mid-elevation benches and rolling slopes between 6,500 and 8,000 feet mix open parks with scattered to moderate timber—predominantly Douglas fir and lodgepole pine with aspen in sheltered drainages. Higher elevations transition to subalpine parkland and windswept alpine tundra above 9,500 feet.
The rolling topography creates numerous basins and cirques holding lakes and willow meadows. Cathedral Peak, Mount Waldstein, and the Twin Sisters dominate the skyline and rise as navigational anchors in steep terrain.
Access & Pressure
Road density is low but concentrated: 441 miles of roads exist, but many are rough, dead-end accesses into drainages rather than through-routes. Spring Creek-Bridger Creek Road and approaches from Fishtail provide entry points, but elevation gain starts immediately. Most hunters access from the Absarokee side, following creeks up narrow canyons toward the divide.
True solitude comes from elevation and distance—the steep, high terrain above 8,000 feet sees light use simply because it demands significant effort to reach. Early season access may be blocked by snow above 9,000 feet. The unit's size and complexity mean pressure concentrates in accessible drainages; ridgelines and remote basins remain quiet.
Boundaries & Context
Unit 513 occupies the high country between East Rosebud and West Rosebud Rivers south of Absarokee in Carbon and Stillwater counties. The unit boundaries follow the divide between these drainages, extending west to the Custer-Gallatin National Forest boundary and south to the Park-Stillwater county line near Granite Peak. This is substantial terrain carved by glaciation and active water, with Fishtail Plateau and Stillwater Plateau anchoring the lower elevations.
The unit sits in classic Northern Rockies country where fast streams cut deep canyons and ridgelines run above 10,000 feet. Bridger Creek and the Stillwater River form key geographic anchors on the unit's flanks.
Water & Drainages
Water in this unit is tied to elevation and season. Higher basins hold reliable alpine lakes—Pentad, Pinchot, Lightning, and the Wildcat Lakes hold water year-round but freeze solid in winter. Numerous named springs scattered throughout provide reliable sources above timberline, though many run seasonal.
Major streams—Rosebud River, Stillwater River, and their tributaries—flow year-round but lie outside the highest terrain. Willow-rich meadows in McDonald Basin, Dean Basin, and other cirques collect snowmelt and seasonal runoff, creating critical water availability for moose. Lower-elevation drainages like Corkscrew Creek, Storm Creek, and Dead Indian Creek provide consistent water but require descent from high country.
Hunting Strategy
Unit 513 is moose country in its purest form: high-elevation basins and willow-rich meadows scattered across difficult terrain. Target McDonald Basin, Dean Basin, and cirques holding lakes above 8,500 feet—these collect moose in late summer and fall as bulls migrate to rut. Early season (September) means glassing high parks and willow patches from surrounding ridges; binoculars and patience matter more than miles hiked.
Water sources define moose location; lakes and springs in the highest basins concentrate animals during dry periods. Late season requires descending to lower willow drainages as snow pushes animals off the peaks. The steep, complex topography demands fitness and navigation skills—route-finding and timing matter more than luck.