Unit 329

Davis Bench and Skinner Meadows serve as clear geographic anchors for orientation across the rolling terrain. Road Agents Rock and Pipe Organ Rock stand as recognizable pillars for glassing distant country. Badger Pass offers a practical saddle through upper ridge country.

Major summits including Painter Peak, Selway Mountain, and Black Mountain define the skyline and can be used for navigation and high-country assessment. The creek drainages—Frying Pan Creek, Peterson Creek, Grasshopper Creek, and Surveyor Creek—provide natural travel corridors that funnel game movement between elevation zones and water sources.

Terrain spans from around 5,200 feet in the lower prairie sections to nearly 10,000 feet on the high ridges, with most country falling between 6,500 and 8,500 feet. The unit's character reflects this spread: broad, open grassland flats and prairie valleys at lower elevations transition into sagebrush-covered benches and ridges, then into scattered to moderate timber on the higher slopes. Horse Prairie, Skinner Meadows, and Coyote Flats represent the open basin terrain where mule deer and elk find winter range and spring forage.

Henneberry Ridge, the Big Hole Divide, and Badger Ridge carry timber and provide summer habitat and travel corridors.

The well-connected road network—1,080 miles of total road—means most of the unit is accessible by vehicle. Route 278 bisects the unit east-west; Route 324, the Bannack-Grant Road, and the Skinner Meadows-Jackson Road provide major corridors. I-15 on the eastern boundary and the Trail Creek-Lemhi Pass Road on the western side offer additional routes.

This connectivity brings moderate hunting pressure, particularly on opener and around established access points. However, the unit's size and rolling terrain allow pressure to disperse across the landscape. Camps near Bannack and Grant provide staging points; the flatter prairie sections absorb more foot traffic than the scattered-timber ridges.

Unit 329 occupies the Horse Prairie drainage north of Clark Canyon Reservoir in southern Beaverhead County. The southern anchor is Clark Canyon Dam; the boundary follows Route 324 westward to the Trail Creek-Lemhi Pass Road, then continues west to the Idaho border at Lemhi Pass. The northern edge traces the Bloody Dick-Big Hole Divide eastward before dropping south along the Skinner Meadows-Jackson Road to Route 278, then follows that highway and the Bannack-Grant Road back to Grasshopper Creek and Interstate 15. The configuration creates a roughly diamond-shaped unit encompassing roughly 400-500 square miles of intermountain basin and ridge country.

Water is the limiting factor here. Grasshopper Creek flows year-round through the southern portion and serves as a reliable drainage. Peterson Creek, Frying Pan Creek, and several tributary streams provide seasonal or intermittent flow depending on snowmelt and precipitation.

Scattered named springs including Pyatt Springs, Spencer Springs, McDowell Spring, and Ryan Springs exist but require reconnaissance to confirm flow status by hunting season. Mud Lake, Swift Lake, and Peterson Lake represent open-water options, though their reliability and accessibility vary. The numerous ditches (Perkins, Prohosky, Pierce) reflect irrigation development but are unreliable for hunting strategy.

Horse Prairie North supports elk, mule deer, white-tailed deer, and mountain lion across its elevation bands. Elk migrate between high-country summer range on the ridges and lower-elevation fall/winter range on the prairie and sagebrush benches. Early season hunting targets higher elevations and timbered ridges where elk summer; transition seasons see movement through the mid-elevation benches and drainage bottoms.

Mule deer thrive on the sagebrush flats and use draw country for cover. White-tailed deer prefer the creek bottoms and scattered timber. Spring-fed areas and permanent creeks concentrate game, especially during dry periods.

Success often hinges on finding reliable water and understanding the elevation migration patterns between prairie and ridge country.