Unit 68

The Wapi Lava Flow and Bear Trap Lava Tube dominate the volcanic landscape and serve as major navigation references across the open terrain. Register Rock provides a historic waypoint for orientation. Multiple buttes—Teakettle, Packsaddle, Rattlesnake, and Eagle Rock—punctuate the horizon and offer elevated glassing positions.

The Great Rift and Inferno Chasm mark terrain breaks worth knowing. Major water features include Split Butte Lake, Tin Cup Lake, and King Lakes, plus numerous reservoirs like Clear Lake and Moose Reservoir. These landmarks help hunters break the monotony of big, open country and identify water sources that concentrate wildlife.

This is low-elevation desert country, with terrain primarily between 4,170 and 7,500 feet dominated by sagebrush flats, grasslands, and sparse forest scattered across rolling terrain. The median elevation around 4,793 feet confirms most hunting occurs in open, semi-arid country rather than timbered slopes. Volcanic features—lava flows, cinder cones, and basalt outcrops—break up the sagebrush monotony and create natural glassing points.

Forest cover is minimal and scattered; the country feels open and exposed. Vegetation transitions gradually from lower desert flats to slightly higher ridgetops with juniper and pinyon, but expect predominantly brush and grass throughout.

Over 2,293 miles of roads network this unit, creating well-connected access from multiple directions. Highway corridors (US 26, State 39, Interstate 86) provide fast entry, while secondary roads penetrate deep into the open country. This connectivity means the unit can absorb pressure, but also that concentrations of hunters naturally cluster near main routes and known water.

Midweek hunting away from primary access points offers better solitude. The open terrain means pressure is visible—scattered hunters across big country are often spotted by competitors. Early-season access can be limited by irrigation schedules and agricultural activity, so timing matters.

Unit 68 sprawls across five south-central Idaho counties—Bingham, Blaine, Butte, Cassia, Minidoka, and Power—creating a massive, discontinuous hunting area. The unit's boundaries follow major highways (US 26, State 39, Interstate 86) and the Snake River, providing clear geographic anchors. Arco serves as a logical entry point from the north, while American Falls provides southern access.

The unit encompasses both high desert basins and the volcanic Craters of the Moon region, making orientation relative to these landmarks essential for hunters planning routes and understanding terrain flow.

Water is the limiting factor in this unit. Scattered reservoirs (Coffee Point, Ripples, Clear Lake, Moose, Parson, Sand Lake) and lakes (Rocky Lake, Wild Horse Lake, Split Butte, Tin Cup) provide reliable water, but distances between sources can be significant across open terrain. Springs like Rueger, Webb, Mowers, and Frenchmans are seasonally dependent.

Fall Creek, Rock Creek, and Warm Creek offer limited perennial flow in their drainages but may run dry in lower sections during late season. Irrigation canals crisscross the unit but are unreliable for hunting-season water. Plan water locations carefully—knowing where reliable sources lie is essential for extended hunts across this expansive terrain.

Unit 68 historically supports mule deer, elk, and pronghorn across its sagebrush and grassland habitat, with scattered timber offering cover at higher elevations and drainage bottoms. Deer concentrate near water sources and in breaks like the Great Rift and canyon systems. Elk use timbered draws and higher ridges (Sunset, Cedar) for security, moving to open flats for feeding.

Pronghorn prefer the open basin country and avoid rough lava terrain. Early season rewards hunters glassing open ridges and buttes; find water and you find animals. Late season pushes deer into deeper drainages and remaining green feed near reservoirs.

The volcanic terrain and lava flows, while navigation challenges, create natural funnels and bedding areas worth investigating systematically rather than racing across open country.