Unit 3D1

The Davis Buttes and Twin Buttes serve as primary visual references across the unit's open expanse. Individual named summits—Rocky Hill, Seventeen Butte, Hungry Man Butte, Horse Nose Butte, and Rattlesnake Butte—provide glassing points and navigation aids in otherwise featureless prairie. Boe Slough and Moffet Slough anchor the few wetland features worth noting.

Water sources like Lake Ilo and Le Paul Slough offer critical reference points. These buttes and sloughs function as the only meaningful landmarks; use them to orient yourself and plan glassing routes across the otherwise homogeneous landscape.

The entire unit stays within a modest 900-foot elevation band, ranging from roughly 1,960 feet in lower areas to 2,840 feet at the highest points. There's no vertical relief to speak of—this is plains terrain through and through. Habitat consists almost entirely of open grassland and prairie, with virtually no forest cover.

Scattered buttes like Rocky Hill, Simon Butte, and Seventeen Butte break the monotony, providing the only meaningful elevation changes. The landscape appears remarkably uniform from most vantage points, which shapes how hunters approach the country.

The unit's well-developed road network (nearly 1.92 miles of road per square mile) makes access straightforward—you won't struggle to reach general areas. However, this accessibility is mostly irrelevant because 97.7% of the unit is private land. Public land access is minimal, making this a permission-based unit.

The connected road system means most hunting pressure concentrates on accessible private holdings near communities and main routes. Your success depends almost entirely on securing landowner access; once you're on ground, the simple terrain and road network make logistics easy.

Unit 3D1 spreads across roughly 1,316 square miles of western North Dakota prairie, anchored by communities like Dickinson, Fayette, and Manning. The terrain sits entirely below 3,000 feet, creating a consistent low-elevation landscape across its span. This is genuine plains country—wide open, minimal forest cover, and dominated by grassland and agricultural ground.

Adjacent units and the broader region define the hunting pressure patterns here; much of the unit consists of private ranchland, which shapes access opportunities significantly.

Water is the limiting factor in this unit. Horse Creek, Stray Creek, Spring Creek, and the South Fork Green River provide the main drainage systems, though they're seasonal or intermittent. Named sloughs and Lake Ilo hold water more reliably but are scattered.

Deep Creek, Murphy Creek, Wolf Creek, and Lighting Creek add to the drainage network, but expect them to be unreliable during dry periods. Plan water-dependent hunts carefully and scout sloughs and creek beds before the season. Hunters relying on water must work around what's actually flowing at hunt time.

Unit 3D1 holds mule deer and white-tailed deer across its prairie grassland. This is spot-and-stalk country—use buttes and higher ground to glass open prairie for deer feeding or bedding in grassland. Early and late light work best for visibility across the open terrain.

Mule deer gravitate toward butte breaks and higher ground where available; white-tailed deer use creek bottoms and brushy draws more heavily. Water locations become critical during dry periods, concentrating deer movement. The flat, open nature of the country means hunters must rely on optics and patience rather than steep terrain or dense cover.

Success requires permission to access private ground and a willingness to cover ground methodically.