Unit 49
High-elevation Pioneer Mountains terrain spanning sparse timber and open ridges above the Ketchum valley.
Hunter's Brief
Unit 49 covers rugged, high-elevation country in the Pioneer Mountains east of Ketchum, with steep terrain, limited timber, and significant elevation change. Access comes via State Highway 75 and Forest Service roads, with scattered trails providing entry into the backcountry. Water is limited but springs and creeks exist in the major drainages. The terrain is complex and demanding—this is big country that rewards preparation and punishes carelessness. Elk hunting here depends on understanding elevation movements and accessing the high basins.
- 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
Pioneer Mountain and Hyndman Peak anchor the unit's high country and serve as excellent orientation points from distance. Duncan Ridge, Morgan Ridge, and Cowcatcher Ridge provide secondary reference features for navigation across the high basins. Little Basin and Big Basin offer logical gathering areas and glassing platforms.
Several named passes—Muldoon Summit, Bradley Summit, and Johnstone Pass—mark travel corridors through the ridgelines. Lava Lake and Windy Lake sit in the upper country and are recognizable reference points. These landmarks help hunters orient themselves in the steep, complex terrain.
Elevation & Habitat
Terrain ranges from mid-elevation valleys around 4,750 feet to high alpine summits exceeding 11,900 feet, with the bulk of the unit lying between 6,500 and 9,500 feet. Sparse timber characterizes the unit—expect open ridges, scattered conifer stands, and expansive basin country rather than dense forest. Sagebrush and alpine grasslands dominate the lower and upper elevations, with scattered whitebark pine, limber pine, and spruce on protected slopes.
The country is steep and angular, broken by prominent peaks, ridges, and deep drainage systems that funnel water downslope.
Access & Pressure
Roughly 926 miles of road serve the unit, but these are mostly Forest Service roads and trails requiring high-clearance or foot travel. Major highway access is limited; State Highway 75 and U.S. Highway 20 frame the boundaries rather than bisect the unit. The closest staging areas are Ketchum and Sun Valley to the west, which concentrate early-season pressure on the western slopes.
The complexity of the terrain (8.3/10) and fair overall accessibility means that hunters willing to hike deeper into the high country encounter less pressure than those sticking to road-accessible areas.
Boundaries & Context
Unit 49 encompasses the high country of Blaine County centered on the Pioneer Mountains, bounded by State Highway 75 on the west near Ketchum and U.S. Highway 20 to the south. The unit stretches from Anderson Ranch Reservoir's watershed in the north through the Little Wood and Big Lost River divides, creating a substantial block of mountainous terrain. The western boundary lies within striking distance of Ketchum and Sun Valley, while the eastern extent reaches deep into the Boise National Forest.
This is a vast unit with substantial terrain complexity and elevation relief.
Water & Drainages
Water sources are limited but concentrated in major drainage systems. East Fork Wood River, Clear Creek, Seamans Creek, and North Fork Hyndman Creek carry seasonal flows from snowmelt and are key travel corridors. Springs are scattered—Strode Spring, Timber Butte Spring, Last Chance Springs, and others exist but shouldn't be relied upon late in the season.
Little Wood River Reservoir and other impoundments provide water at lower elevations. Hunters must plan water strategy carefully; the high basins can be dry by mid-season, making early-season hunting and knowledge of reliable springs critical.
Hunting Strategy
Elk in Unit 49 occupy the high basins and ridgeline systems during early season, then migrate downslope as snow increases. Early archery hunting focuses on glassing the high parks and basins—Little Basin and Big Basin are prime observation points—then stalking bulls in open country where timber is sparse. Rifle season pressure pushes elk to remaining timbered pockets and the steepest terrain.
Water scarcity becomes a factor by late season; successful hunters position themselves near the reliable springs and creeks listed on maps. The steep terrain demands fitness and navigation skills; elk can be glassed from distance but reaching them requires serious elevation gain and technical movement through rock and scree.