Unit 36B-1
Mid-elevation rolling country near Challis with sparse timber and perennial creek systems.
Hunter's Brief
This Custer County unit sits in rolling terrain between 4,800 and 8,400 feet, anchored by the Challis area. Moderate elevation swings support scattered timber transitions across the landscape. Multiple creeks—Challis, Mill, Eddy, and Darling among them—provide reliable water through the region. The road network is well-developed for a compact unit, making access straightforward from town staging areas. Elk country with decent access, though the rolling terrain means glassing opportunities require deliberate ridge positioning.
- 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
Challis Creek forms the primary drainage corridor through the unit, running north-south and serving as both a navigation aid and reliable water source. Mill Creek and Eddy Creek provide secondary drainages with consistent flow. Daugherty Spring offers water security in higher terrain.
The named gulches—Cartwright, Daugherty, John, and Klug—create the rolling topography and define logical travel corridors. These features are straightforward enough to locate on a map and recognize on the ground, making navigation relatively intuitive for hunters accustomed to Idaho foothill country.
Elevation & Habitat
Elevation spans from near 4,800 feet in the lower valleys to 8,400 feet on the higher ridges—a moderate vertical band that creates distinct habitat transitions. Lower elevations favor open grassland and sagebrush with scattered timber. Mid-elevations transition through ponderosa and mixed conifer forests interspersed with parks and meadows.
Upper slopes steepen into sparser timber with increased open ridgetop country. The sparse forest designation means significant portions remain open—glassable meadows, creek bottoms, and rolling grassland dominate the visual landscape rather than continuous timber.
Access & Pressure
The connected access badge reflects 200+ miles of roads serving this compact unit. Multiple entry points from Challis and surrounding areas mean this is familiar country to local hunters. The road density suggests straightforward vehicular access to trailheads and staging areas, typical of foothill units near population centers.
Pressure patterns likely concentrate near the most obvious road-accessible ridges and creek bottoms, making it worthwhile to walk past the initial staging zones. The rolling terrain limits visibility for glassing, which naturally spreads pressure across the landscape rather than funneling it to obvious high-ground vantage points.
Boundaries & Context
Unit 36B-1 encompasses the Custer County terrain immediately surrounding and north of Challis, one of central Idaho's primary backcountry towns. The unit is compact in size but strategically positioned—Challis sits at the geographic core, providing immediate resupply and lodging access. The terrain rolls through valleys and ridges that define the transition zone between the high Salmon River country to the east and lower elevation terrain to the west.
Historic Garden City marks the northern extent. This is accessible mountain foothill country rather than deep wilderness.
Water & Drainages
Limited water sources indicate scarcity in some areas, but the creeks listed—particularly Challis Creek as the major drainage—provide reliable flow through much of the season. Darling Creek, Mill Creek, and Eddy Creek offer secondary options. Daugherty Spring and First Spring Creek extend water access into higher basins.
The water pattern means hunters should plan routes near creeks during early and late season, then transition to spring-fed areas and higher drainages mid-season. Overall, water scarcity is manageable rather than restrictive, provided you know where the reliable sources sit.
Hunting Strategy
Elk are the historical focus in this rolling foothill country. The sparse timber and rolling topography favor a mobile hunting approach—use creeks as travel corridors to position for early morning and evening calling, then hunt ridgetop and park country during midday when visibility improves. The elevation spread supports early-season hunting in the lower parks and transitions, rut activity along mid-elevation ridges, and late-season concentration in higher basins.
Spring-fed areas and reliable creeks concentrate animals during dry periods. Start near Challis to minimize travel, then use the road network to access different drainages and elevations based on season and recent sign.