Unit 54, Idaho

The unit covers 873,344 acres (approximately 1,366 square miles) at elevations ranging from approximately 3,800 feet on the desert valley floors to 8,400 feet at the summit ridges of the South Hills range. Terrain is characterized by rolling ridges and forested mountains separated by steep canyons, transitioning from open sagebrush-steppe in the lower valleys and foothills to densely forested north-facing slopes and subalpine terrain near the highest elevations. The Cassia Mountain range, reaching approximately 8,400 feet, forms the backbone of the National Forest portion. Lower-elevation BLM parcels in the northern and southwestern sectors are characterized by basalt benches, riparian draws, and agricultural inholdings.

Primary access from Twin Falls: drive approximately 40 miles south on U.S. 93, or via SH-27 south from Burley to Oakley, then continue south into the South Hills on paved and gravel forest roads. The Sawtooth National Forest Cassia Division (Minidoka Ranger District) maintains 12 developed campgrounds in the unit, including sites along Big Cottonwood Creek and Goose Creek drainages. The Lower Goose Creek Reservoir is surrounded primarily by BLM and state land; an 11-site BLM RV campground sits near Oakley east of the reservoir's western arm. No federally designated Wilderness areas exist within Unit 54. ATVs and dirt bikes are permitted on designated routes. Seasonal road closures apply at higher-elevation National Forest areas, typically November through spring snowmelt — confirm current closure gates with the Minidoka Ranger District before hunting. The northeastern and northwestern reaches include significant private land (40.7% of unit); hunters must verify land ownership before accessing. BLM Burley Field Office administers southwestern BLM blocks. No properties are currently enrolled in Idaho's Access Yes! program within the unit.

Vegetation transitions sharply with elevation and aspect. Valley floors and low foothills support sagebrush-steppe and juniper. Mid-elevation foothills carry bitterbrush, chokecherry, and serviceberry shrubfields. North-facing slopes in the Sawtooth National Forest hold subalpine fir, lodgepole pine, and aspen. South- and west-facing slopes are more open, with mountain mahogany, aspen patches, and scattered juniper. Lower-elevation BLM parcels in the Jim Sage, Middle, and Cottrel mountains include pinyon-juniper and sagebrush communities that serve as critical wintering range for mule deer. Agricultural lands (alfalfa, grain) in the northern and eastern portions provide seasonal forage. Big Cottonwood Creek and Goose Creek drain the National Forest portion and support riparian corridors with trout fisheries.

Mule deer are the most abundant big game species; they summer in the mixed-conifer forests and subalpine zones of the South Hills and winter in lower-elevation pinyon-juniper and sagebrush communities on BLM lands in the southern and southwestern portions of the unit. Elk occupy the forested National Forest core and exhibit predictable rut movement in late September, making the South Hills a notable early-season controlled elk hunting destination — Unit 54 is within the South Hills Elk Zone. Pronghorn are present on flat desert valleys and low foothills in the lower-elevation BLM sectors. Shiras moose occur in limited numbers in riparian corridors and aspen stands. Mountain lion prey on deer and elk throughout the unit year-round. Gray wolf is present and subject to controlled harvest. Bighorn sheep tags are available through controlled draw, indicating an established but small population. Upland birds including sage-grouse, sharp-tailed grouse, chukar, gray partridge, forest grouse, pheasant, quail, and wild turkey are present across respective habitat zones.