Unit 49, Idaho

Terrain is dramatically varied, ranging from approximately 4,900 feet in the southern valley floors to over 11,000 feet in the northern Pioneer Mountains, including Old Hyndman Peak at 11,775 feet. The northern portion is steep, rugged, and heavily glaciated, with rocky cirques, alpine basins, and talus fields above 9,000 feet. The southern half transitions through rolling foothills and sagebrush-grass flats, cut by the Little Wood River drainage and flanked by the Big Wood River valley near Ketchum. Overall land cover is approximately 79% rangeland, 8% forest, 9.5% irrigated agriculture, and 4% riparian/other.

Primary road access runs via State Highway 75 through the Big Wood River valley, connecting Ketchum southward to U.S. 20 near Carey/Shoshone, which defines the southern boundary. Trail Creek Road (Forest Road 408) heads northeast from Sun Valley/Ketchum over Trail Creek Summit and connects to Mackay via the Lost River drainage — this is the main vehicle corridor into the northern Pioneer Mountains. Dollarhide Road follows Warm Springs Creek southwest from Ketchum over Dollarhide Summit through the Smoky Mountains. Key trailheads in the Sawtooth NF Ketchum Ranger District include Pioneer Cabin (FR 408/FR 137), Baker Lake, Norton Lakes, Fox Creek, Deer Creek, and Greenhorn (the busiest motorized trailhead on the district). The Greenhorn drainage is open to singletrack motorized use. There are no federally designated Wilderness areas within Unit 49. The southern half contains two BLM Wilderness Study Areas — Friedman Creek WSA (~10,000 acres, Blaine County, non-motorized) and Little Wood River WSA (~4,000 acres near Gimlet, limited by surrounding private land, non-motorized). The Motorized Hunting Rule applies across the entire unit August 30–December 31, restricting big game hunters to established roadways open to full-sized vehicles. No IDFG Access Yes! properties are listed. Land ownership: BLM 30.5% (152,330 acres, Shoshone Field Office), USFS 27.8% (138,790 acres, Sawtooth NF/Salmon-Challis NF Ketchum RD), State of Idaho 6.9% (34,381 acres), Private 34.6% (172,829 acres), Other federal <0.5%. Total public land approximately 65%.

Lower elevations (below ~6,000 ft) are dominated by sagebrush-steppe communities, grassland benches, and irrigated agricultural fields planted in alfalfa, grass hay, and other crops. Riparian corridors along the Big Wood and Little Wood rivers support cottonwood groves, willows, alder, and birch with grasses and sedges. Mid-elevations (6,500–9,000 ft) on north- and east-facing slopes carry mixed conifer forests of Douglas fir, Engelmann spruce, blue spruce, subalpine fir, lodgepole pine, and quaking aspen. Upper slopes and high basins above 9,000 ft transition to subalpine meadows, rocky outcrops, scattered krummholz, and open grassy parks. The southern BLM wilderness study areas — Friedman Creek WSA (~10,000 acres) and Little Wood River WSA (~4,000 acres near Gimlet) — feature steep drainages with riparian shrubs and brushy draws.

Rocky Mountain elk inhabit the northern forested mountains and migrate seasonally to lower agricultural fringes; IDFG manages the herd under the Pioneer Elk Zone (shared with Units 36A and 50), with recent reductions in antlerless opportunity aimed at slowly growing the population — numbers are described as mostly stable and trending slowly upward. Mule deer are abundant across all elevations, from alpine summer ranges in the Pioneers to sagebrush winter range in the southern flats; they are the most heavily pursued big game species in the unit. Pronghorn antelope occupy the open sagebrush-steppe and agricultural margins in the southern portion of the unit and are exclusively managed through controlled hunts. Black bear are present in the forested northern areas. Mountain lion occur throughout the unit tracking deer populations. Rocky Mountain goat, Shiras moose, and gray wolf are listed by IDFG Hunt Planner as present and huntable. Upland birds include chukar, quail, sage-grouse, sharp-tail, and forest grouse; small game includes rabbits and squirrels; waterfowl use riparian corridors.