Unit 1-D

Eagle Butte, Grassy Butte, and Foreman Butte serve as prominent navigational references and glassing platforms across the open prairie. The Glass Bluffs (historical) mark badlands terrain in the western portion. The Achenbach Hills provide the unit's most pronounced elevation gain and offer vantage points for surveying surrounding country.

Long X Divide and named coulees like Badlands Draw, Wolf Coulee, and Sheep Coulee are recognizable terrain features. The Yellowstone River and South Fork Smith Creek provide drainage corridors and orientation markers through the landscape.

The unit sits entirely below 5,000 feet, with elevations gradually rising from river bottoms near 1,800 feet to prairie uplands around 2,800 feet. Nearly 90 percent is treeless plains and grassland, with only small pockets of scattered forest. The dominant landscape is native prairie, sagebrush flats, and rolling grassland interspersed with badlands breaks.

Vegetation is sparse but provides reliable pronghorn forage. The few timbered areas cluster along creek drainages and protected coulee bottoms. This is wide-open country where thermals and wind patterns dominate—little concealment but excellent visibility for glassing.

With 1.46 miles of road per square mile, the unit has a moderate but workable road network of county roads and ranch roads. About 385 miles are major routes; Highway access exists but hunting pressure concentrates near accessible ranch roads and populated areas like Alexander and Harding. Half the unit is private land, requiring permission and reducing accessible country significantly.

The combination of vast acreage, split ownership, and moderate road access means pressure is moderate in accessible areas but relief exists in roadless sections and private country hunters haven't accessed.

Unit 1-D encompasses nearly 1,470 square miles of northeastern North Dakota badlands and prairie country, anchored by the Yellowstone River drainage and the Missouri River breaks system. The region sits between the populated towns of Alexander, Harding, and Charbonneau, making it accessible from multiple approach points. The Achenbach Hills and scattered buttes define the landscape's only significant elevation relief.

This is classic Great Plains pronghorn habitat—wide open grasslands broken by erosional badlands features and coulee systems that concentrate both game and water.

The Yellowstone River is the unit's dominant water feature, flowing through the southern portion and attracting pronghorn to its bottoms and accessible crossings. Creeks including South Fork Smith Creek, McPeak Creek, One-O-One Creek, and Alkali Creek are seasonal or intermittent draws that hunters should verify before planning water sources. Springs—Klandl, McPeak, Hagan, Softwater, and others—are scattered across the unit but may be unreliable depending on season.

Sather Reservoir and Sather Lake provide reliable water for wildlife. Hunters should plan water caches or identify reliable springs before the hunt.

Unit 1-D is pronghorn-specific country where success depends on glassing from buttes and ridges, then stalking or pursuing on foot. Eagles Butte, Grassy Butte, and the Achenbach Hills are key vantage points for spotting pronghorn across open prairie. Early and late seasons are critical—summer heat pushes animals toward creek bottoms and shaded coulee breaks, while fall rut brings bucks into the open.

Pronghorn follow predictable routes between water and feed; identifying active springs and creeks is essential. The open terrain offers excellent visibility but minimal cover; successful hunting requires patience glassing, swift glass-to-stalk movements, and understanding wind patterns across the exposed grassland.