Unit 270
East Fork Bitterroot
Steep Bitterroot Range country spanning high ridges, alpine basins, and forested drainages across the Montana-Idaho border.
Hunter's Brief
Unit 270 is a sprawling high-elevation wilderness straddling the Bitterroot Range divide. Terrain shifts from dense timbered drainages in the west to open ridges and alpine basins toward the Continental Divide. Access is primarily via trailhead staging from valley towns like Sula and Como, with most hunting requiring foot travel into the backcountry. Water sources are scattered through the high country—expect reliable springs and streams at higher elevations, but plan accordingly for the ridgetop terrain. This is serious country that rewards preparation.
- 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
Key features for navigation and glassing include the prominent ridgeline systems anchored by Shook Mountain, Medicine Point, and Doran Point. The Continental Divide forms a natural reference line running the unit's eastern edge. Major drainage names—Trapper Creek, Medicine Tree Creek, Spade Creek—serve as orientation guides.
Lost Trail Pass and Skalkaho Pass are important saddle crossings. High lakes like Fish Lake, Hope Lake, and Hidden Lake mark water sources and glassing vantage points. The ridgeline between Camp Creek and Shields Creek provides a major topographic break south toward the border.
Elevation & Habitat
The unit spans from low-elevation sagebrush and ponderosa valleys near 3,600 feet to above-timberline peaks and ridges approaching 9,500 feet. Mid-elevation drainages feature dense coniferous forest—Douglas fir, spruce, and lodgepole—while south and west-facing slopes open into parks, meadows, and grassland pockets. Higher terrain transitions to subalpine larch and whitebark pine, with numerous alpine basins and meadows (Moose Meadows, Buck Ridge Meadows, and others) providing critical summer range.
This elevation spread creates distinct seasonal habitat use and predictable animal movement corridors.
Access & Pressure
Over 1,300 miles of roads provide valley-level access, but the unit's terrain complexity means most hunting is foot-based from established trailheads. US Highway 93 and West Fork Bitterroot Road offer vehicle access to staging areas; USFS Trails 601, 56, and connecting routes penetrate the backcountry. Moderate ridge-and-basin terrain (complexity 6.8/10) means accessible high country but challenging navigation in certain drainages.
Early season sees heavier use near trailheads and lower meadows; adventurous hunters pushing deeper into the ridgeline systems and remote basins encounter less pressure but require solid backcountry skills and time.
Boundaries & Context
Unit 270 encompasses the high core of the southern Bitterroot Range, anchored by the Montana-Idaho border to the south and the Continental Divide to the east. The western boundary runs along ridgelines separating Spade Creek and Piquette Creek drainages, with US Highway 93 and the West Fork Bitterroot Road marking the primary valley access corridor. The unit is roughly 35 miles north-south along the divide.
Towns like Sula, Como, and Medicine Hot Springs serve as base camps for hunters, though the vast majority of hunting terrain requires multi-day pack trips or substantial foot travel from established trailheads.
Water & Drainages
Water availability is moderate to challenging depending on elevation and drainage. Reliable streams include Trapper Creek, Spade Creek, and Medicine Tree Creek flowing the main drainages. Alpine and subalpine lakes (Fish, Hope, Hidden, Trout, Shadow, Carmine, and others) provide water above timberline.
Several hot springs mark lower elevations—Sleeping Child, Gallogly, and Medicine Hot Springs. Late-season hunting at higher elevations requires reliable spring knowledge; Pollywog Spring, Cold Springs, and Clough Springs are documented water sources. Plan water caches for ridge-running and know which drainages maintain flow through hunting season.
Hunting Strategy
Unit 270 holds elk, mule deer, white-tailed deer, and mountain lion across its elevation bands. Lower drainages and meadows support white-tailed deer and early-season elk, particularly in timber and along creeks. Mule deer favor mid-elevation parks and south-facing slopes.
High-country elk migrate into alpine basins and ridgetop meadows (Moose Meadows, Water Sign Meadows) during summer and early fall; archery and early rifle seasons can coincide with elk above timberline. Mountain lion follow deer and elk throughout. Glassing high ridges and basins is productive but demands optics and patience.
Success requires either early archery targeting high meadows or longer backcountry trips to avoid pressure near trailheads.