Unit 313

Sheep Mountain and Palmer Mountain serve as major reference points for navigation and glassing from distance. Red Mountain and Dome Mountain anchor the southern ridgelines above the park boundary. The Point of Rocks and Dick Randall Point provide natural landmarks visible from various vantage points.

The canyon system itself—particularly the Black Canyon of the Yellowstone and Yankee Jim Canyon—is the unit's dominant feature and a natural highway for both human and animal movement. Deckard Flats and the basins (Big Pine, Dailey, Maiden, Stands) break up the forest and offer opportunities to glass for elk or glass into parks from surrounding ridges.

Elevations span from around 4,900 feet in the river bottoms to over 10,500 feet on the highest ridges—a 5,600-foot elevation range in a relatively compact area. Low-elevation sagebrush and grass give way quickly to scattered ponderosa and Douglas-fir on the mid-slopes, transitioning to dense lodgepole and spruce-fir forest at higher elevations. The steep topography means very little flat ground; most of the unit is steep sidehills and ridge systems.

Pockets of open parks and basins—Big Pine, Maiden, Dailey, and Stands Basins—provide important glassing and grazing areas within the timbered country. The forest is moderately dense overall, with significant patches of exposed rock and sparse timber on the steepest terrain.

Despite 265 miles of roads in the system, actual access is limited by steep terrain and dead-end canyon roads. Trail Creek Road and Goose Creek Road provide the main entry points, but both terminate or become rough quickly. Most hunter pressure concentrates along the roaded corridors and near Gardiner and Corwin Springs—meaning the steeper, interior ridge systems and upper basins receive less foot traffic.

The 7.5 terrain complexity score reflects how steep and navigationally challenging the country is; it's not huge acreage, but the topography itself provides natural pressure relief. Early season crowds in nearby areas often bypass this unit entirely due to its difficulty.

Unit 313 wraps around the northern boundary of Yellowstone National Park in Gallatin and Park Counties, anchored by the Yellowstone River on the east and bounded by Interstate 90 to the north. The unit encompasses roughly the country between Gardiner, Corwin Springs, and Jardine—a roughly triangular piece of real estate that's heavily influenced by its proximity to the park. The terrain is dominated by steep, timbered slopes that funnel into major canyon systems, particularly the dramatic Yankee Jim Canyon and Black Canyon of the Yellowstone.

Road access points include Trail Creek Road and Goose Creek Road, though neither provides deep interior penetration.

The Yellowstone River forms the eastern boundary but much of it runs through inaccessible canyon. Reliable water is limited once you leave the main river valley. Key drainages include Phelps Creek, Sixmile Creek, Pine Creek, Pole Creek, and Sheep Creek—most of which hold water seasonally but dry significantly by late summer.

LaDuke Spring is marked but isolated. Several named creeks indicate water sources, though their reliability varies. Hunters should plan to pack water for midday glassing or accept the constraint that much hunting activity will be concentrated near the few reliable water sources and seasonal springs.

The steep terrain means water often rushes off quickly rather than pooling.

Elk move through this unit on migration routes between lower winter range and higher summer country, with seasonal patterns heavily influenced by Yellowstone proximity and park boundaries. Early season typically finds elk in the high parks and basins (Dailey, Stands, Maiden, Big Pine); mid-season migration pushes animals down canyon drainages toward lower elevations. Mule deer occupy mid-elevation slopes and canyons year-round.

Mountain lion and white-tailed deer prefer the heavy timber and canyon bottoms. Success requires either intercepting migrating elk on the ridges above or working the steeper drainages where animals concentrate near water. The Black Canyon system acts as a natural funnel; hunters who understand canyon movement patterns and can navigate steep terrain have distinct advantages over those trying to road hunt.