Unit 11A

Rolling prairie grasslands with scattered water sources and expansive glassing country across the central plains.

Hunter's Brief

Unit 11A is primarily open prairie broken by gentle rises and occasional creek drainages. The landscape is almost entirely private land, requiring permission before hunting. Roads are fairly distributed across the unit, making navigation straightforward. Water comes from scattered lakes and creeks rather than reliable sources throughout. Expect open terrain with limited cover—hunting relies on glassing and stalking across exposed country. Mule deer and white-tailed deer use the draws and creek bottoms; adjust tactics seasonally as deer move between upland and riparian cover.

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Terrain Complexity
3
3/10
?
Unit Area
619 mi²
Moderate
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Public Land
1%
Few
?
Access
0.9 mi/mi²
Fair
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Topography
1% mountains
Flat
?
Forest
6% cover
Sparse
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Water
0.3% area
Moderate

Terrain Deep Dive

Landmarks & Navigation

Brushy Butte provides a useful navigation reference point and modest glassing vantage in this otherwise gently rolling country. Yellow Bear Canyon marks a notable drainage system. Water features—Silver Lake, Twin Lakes, and White Lake—anchor the landscape and concentrate both deer and hunting pressure.

Bad Hair Creek and Horse Creek run through significant portions of the unit, offering travel corridors and habitat structure. These creeks are the primary topographic features breaking up the prairie monotony and should be primary glassing and scouting focal points for hunters planning multiple days in the unit.

Elevation & Habitat

Elevation spans roughly 2,650 to 3,600 feet across relatively modest terrain changes. The landscape is predominantly open prairie grassland with sparse tree cover concentrated along creek bottoms and in occasional shelter belts. Habitat transitions subtly rather than dramatically—upland areas remain exposed and rolling, while drainages like Bad Hair Creek and Horse Creek provide narrow strips of riparian vegetation and cover.

This is low-country terrain throughout, with no significant elevation barriers. Vegetation is primarily native and introduced grassland; trees appear mainly as windbreaks or along watercourses.

Elevation Range (ft)?
2,6573,606
01,0002,0003,0004,000
Median: 3,127 ft
Elevation Bands
Below 5,000 ft
100%

Access & Pressure

The unit has fair road connectivity with 575 miles of roads distributed at 0.93 miles per square mile. However, almost all land is private, which creates a dramatic access bottleneck regardless of road density. Hunters must secure permission before entry; this effectively filters pressure and means most accessible areas will see concentrated hunting during season.

Major highways provide external access routes, but internal navigation depends on private road use. Population centers nearby (Martin, Allen) may attract local pressure on publicly accessible pockets. Strategic hunters should focus on negotiating access early and hunting areas farther from town access points.

Boundaries & Context

Unit 11A occupies roughly 619 square miles of central South Dakota prairie. The unit sits entirely within the plains, bounded by a network of small towns including Allen, Martin, Batesland, and Blackpipe. This is agricultural and ranching country—99.5% is private land, making access dependent on landowner permission.

The unit is straightforward to locate and navigate, sitting on accessible terrain with fair road density connecting to regional highways. Surrounding area maintains similar prairie character, making this unit representative of the broader High Plains landscape.

Land Cover Breakdown?
Mountains (forested)
0%
Mountains (open)
0%
Plains (forested)
6%
Plains (open)
94%
Water
0%

Water & Drainages

Water is moderate but concentrated, which simplifies logistics but increases pressure around reliable sources. Silver Lake, Twin Lakes, and White Lake are named water bodies worth scouting. Bad Hair Creek, Horse Creek, Red Horse Creek, Pretty Hip Creek, and Spring Creek all provide seasonal to reliable water depending on conditions and time of year.

Summer drought can reduce creek flow significantly, making the lakes more critical. Water scarcity in parts of the unit makes preseason scouting of these drainages essential. Deer congregate near water during dry periods, making creeks key hunting corridors during late season.

Hunting Strategy

Unit 11A holds mule deer and white-tailed deer across its prairie and drainage systems. Both species use the creek bottoms and occasional tree cover for bedding while moving to grassland for feeding. Mule deer tend to higher ground and more open terrain; white-tailed deer favor riparian cover and draws.

Early season finds deer using creek systems and scattered timber. During rut, bucks range more openly across prairie. Late season concentrates deer near reliable water as temperatures drop.

Glassing from high points reveals deer movement across open ground. Stalking creeks and draws is effective, particularly at dawn and dusk. Pressure management is critical on this private-land unit—less-accessible drainages deeper in the unit will hold less-hunted deer than areas near road access.