Unit 71

The Portneuf Range and Pocatello Range define the eastern topography, with Mount Putnam and Bonneville Peak providing prominent navigation points visible across the unit. Inkom Pass, Inman Pass, and Bennetts Gap offer natural travel corridors through ridge systems. Horse Lakes provides a named water reference in the higher country.

Basins like Buckskin and Danielson anchor lower terrain features. Several named creeks including Pebble Creek, South Fork Inman Creek, and Clear Creek drain the ridges—useful reference lines for navigation and water strategy. These landmarks break the landscape into recognizable chunks for trip planning.

Terrain rises from around 4,500 feet in the lower valley bottoms through intermediate benches at 5,500-6,500 feet, then climbs into forested slopes reaching above 9,200 feet on the highest ridges. Lower elevations support sagebrush flats and sparse juniper, transitioning into ponderosa and mixed conifer forest on mid-elevation slopes. Higher country features fir and spruce-dominated stands.

This vertical zonation creates natural habitat corridors and seasonal movement patterns, with the benchland areas offering open glassing terrain while ridge systems provide timber cover and water-fed drainages.

Nearly 1,000 miles of roads cross the unit, with good connectivity from Interstate 15 and Highway 26 providing multiple entry points. Most hunters concentrate near highway corridors and obvious access roads from Pocatello and Bannock areas. The Bancroft-Chesterfield Road and various county roads penetrate into mid-elevation country, but the extensive road network masks significant opportunities away from obvious parking spots.

The rolling terrain and moderate forest cover mean off-road hiking reaches good country within 2-4 miles of most trailheads. Pressure likely heavy near highway access, moderate to light on ridge systems away from main corridors.

Unit 71 encompasses portions of Bannock, Bingham, and Caribou counties in southeast Idaho, centered on the Portneuf River drainage between the Snake River valley and higher mountain terrain to the north. The unit stretches from Conant Valley south through Bancroft and Chesterfield, bounded by Interstate 15 on the west, US Highway 26 forming a major reference line through the middle, and the Idaho-Wyoming state line along the eastern edge. Fort Hall lies to the west, providing a key geographic anchor.

The unit's roughly rectangular shape encloses significant elevation change across a moderate footprint.

Water exists throughout but requires knowing the landscape. The Portneuf River forms a major drainage on the western portion, while South Fork Snake River flows along the southern boundary. Seasonal creeks including Clear Creek, Crane Creek, Cutler Creek, and Smith Creek drain from higher elevations—reliable early season but variable by late summer.

Numerous springs dot the higher country: Big Willow, Big Horse, Big Spring, King Creek, Cold, Orman, Crystal, Waterhouse, and Warm springs offer water above 6,500 feet. Lower benches rely on stock tanks and irrigation infrastructure. Understanding spring reliability becomes critical for late-season hunting in higher terrain.

The unit's vertical range supports multiple species with elevation-dependent movement patterns. Lower benches and sagebrush terrain favor pronghorn and mule deer early season, with herds shifting higher as temperatures rise. Elk utilize mid-elevation forest and parks, following water and forage as the season progresses.

Bear habitat concentrates in timbered drainages with spring water and higher country berry fields. Early season hunting focuses on benchland glassing and creek bottoms; rut period shifts focus to ridge saddles and timber parks where animals funnel; late season concentrates around reliable water sources and lower-elevation winter range. The moderate terrain complexity rewards hunters who study the drainage systems and water flow.