Unit 38A

Key navigational features include the series of lakes scattered across the unit—Rezac Lake, Spring Lake, Thomas Lake, and Mitchell Lake serve as reliable glassing points and reference markers. The Bald Hills and Ree Heights provide the most prominent high-ground vantage points for spotting pronghorn across the open country. Multiple creeks including Soldier Creek, Crow Creek, and Wolf Creek define drainage corridors that concentrate pronghorn movement, particularly during seasonal transitions.

The Missouri River's Big Bend forms the western boundary, anchoring unit orientation. Fort Thompson, Holabird, and Saint Lawrence serve as supply and staging points for hunters accessing the region.

This unit sits entirely in the lower elevation zone between roughly 1,300 and 2,200 feet, creating a uniformly low-relief landscape. Pronghorn habitat dominates—open prairie grassland with scattered sagebrush and native grasses covering nearly all the unit. Sparse timber occurs only in scattered locations along creek bottoms and draws, with the landscape remaining predominantly open throughout.

The plains environment is interrupted only by shallow reservoirs, seasonal wetlands, and occasional rock outcrops like the Bald Hills and Ree Heights that provide minimal visual relief. This is classic shortgrass prairie country with minimal vertical terrain.

The unit features a fair network of county and section-line roads (approximately 1.4 miles of road per square mile) that provide vehicle access across much of the landscape, though nearly all land is private. Access challenges are extreme—only 2.6% of the unit is public land, making most hunting dependent on landowner permission. The vastness of the unit combined with minimal public access typically results in light hunter pressure outside immediate road corridors.

Hunters should expect to scout from roads and negotiate access well in advance. Towns like Fort Thompson and Holabird provide service and fuel, but this is remote country requiring self-sufficiency once afield.

Unit 38A blankets approximately 2,800 square miles of central South Dakota's Missouri River drainage region, stretching across the rolling to flat prairie between Fort Thompson and surrounding communities. The unit encompasses a vast mosaic of private rangeland with scattered public holdings, typical of the Great Plains landscape. The terrain is dominated by grassland and shortgrass prairie with occasional draws and creek bottoms providing minimal relief.

The region sits at the transition between the Missouri River valley floor and the upland plains, though elevation changes are subtle across the unit.

Water is moderately distributed across the unit through a network of shallow lakes, reservoirs, and seasonal creeks. Major water features include multiple reservoirs (Rose Hill Lake, Jones Lake, Lake Louise, Lake Douglas, Chapelle Lake) and natural lakes (Spring Lake, Thomas Lake, Mitchell Lake, Wall Lake) that serve as pronghorn water sources and hunting reference points. Perennial creeks like Soldier Creek, Crow Creek, and Wolf Creek flow through draws and provide seasonal water in a landscape where surface water can be unreliable.

Seasonal sloughs and wetlands expand water availability during wet periods. Understanding water distribution is critical for pronghorn hunting, as animals congregate around reliable sources during dry conditions.

Unit 38A is pronghorn country, with the species historically abundant in this grassland environment. Success depends on spotting and stalking across open terrain—early morning and late afternoon glassing from higher ground like the Bald Hills reveals pronghorn movement patterns. Water sources around lakes and creeks concentrate animals during dry periods, making these focal points for strategy.

The flat terrain means long-range glassing and shooting are essential skills; pronghorn are visible at distance but spook quickly in open country. Most hunting success will come to hunters who secure private land access and understand pronghorn seasonal movements. The landscape offers little concealment, so planning approaches carefully and hunting during lower-light periods improves odds significantly.