Unit 16A

Flat prairie grasslands dissected by creek bottoms and scattered lakes across northeastern South Dakota.

Hunter's Brief

Unit 16A spreads across nearly 772 square miles of classic Great Plains prairie with minimal timber and abundant water features. The terrain is uniformly low and rolling, dominated by grassland with seasonal wetlands and lake systems. A well-connected road network makes access straightforward, though nearly all land is private—hunter cooperation and landowner relationships are essential. Hiddenwood Creek and Spring Creek provide reliable water corridors that concentrate game movement through otherwise open country.

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Terrain Complexity
1
1/10
?
Unit Area
772 mi²
Moderate
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Public Land
3%
Few
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Access
1.9 mi/mi²
Connected
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Topography
0% mountains
Flat
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Forest
0% cover
Sparse
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Water
5.4% area
Abundant

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Terrain Deep Dive

Landmarks & Navigation

The lake system anchors navigation and hunting strategy: Renz Lake, McClarem Lake, Big Lake, and the interconnected Lindemann Lakes represent the unit's primary water features and natural focal points. Gallaway Bay and Pollock Bay indicate larger water bodies worth investigating for game movement patterns. Hiddenwood Creek runs as a major drainage corridor cutting through the prairie—Spring Creek and Shaw Creek provide additional defined travel routes for deer moving between feeding and water.

These creeks and their associated vegetation strips offer the only terrain breaks in otherwise open grassland, making them critical for both navigation and hunting approach.

Elevation & Habitat

The entire unit sits in the lower elevation prairie band, ranging from roughly 1,600 to 2,100 feet with a median around 1,800 feet. Virtually no forest exists here—94.5 percent is open grassland interspersed with agricultural land and prairie. The sparse timber badge reflects reality: scattered cottonwoods appear primarily along creek bottoms and around lake margins.

Vegetation transitions from drier upland grass to moister prairie near water features, but the dominant landscape remains unbroken grassland. This is short-grass and mid-grass prairie adapted to northern Great Plains conditions, not wooded country.

Elevation Range (ft)?
1,5782,123
01,0002,0003,000
Median: 1,781 ft
Elevation Bands
Below 5,000 ft
100%

Access & Pressure

A well-connected road network averaging 1.85 miles per road per square mile makes physical access straightforward; highways and county roads grid the unit efficiently. However, the private land reality inverts typical hunting pressure patterns. With 97.4 percent private ownership, access depends entirely on hunter relationship-building and landowner permission.

This creates opportunity for disciplined hunters willing to invest in landowner contact but eliminates walk-in public land hunting. Early season often sees lighter pressure from hunters unfamiliar with private land protocols, while hunting pressure concentrates near the few accessible areas where access agreements exist.

Boundaries & Context

Unit 16A occupies a large block of northeastern South Dakota prairie, anchored by the small communities of Pollock, Herreid, and Mound City. The landscape represents classic northern Great Plains—broad, open grassland with minimal elevation change across its 772 square miles. Nearly all hunting here depends on private land access; public land comprises less than 3 percent of the unit, making it a region where reputation and relationships with landowners determine opportunity.

The unit's flat character and extensive road network contrast sharply with most western hunting units, offering a fundamentally different access and hunting dynamic.

Land Cover Breakdown?
Mountains (open)
0%
Plains (forested)
0%
Plains (open)
95%
Water
5%

Water & Drainages

Water abundance is the unit's defining feature. The abundant water badge reflects extensive lake systems, reservoirs like Lake Pocasse and Mutske Lake, and perennial creek drainages throughout. Hiddenwood Creek and Spring Creek provide reliable water corridors that structure game movement in an otherwise featureless landscape.

Summer drying occasionally affects smaller ponds and seasonal wetlands, but main water bodies remain consistent. In flat country, water becomes the primary terrain feature organizing animal movement—nearly every productive hunting area relates directly to these water features or their associated vegetation zones.

Hunting Strategy

Unit 16A holds mule deer and white-tailed deer across its grassland habitat. White-tailed deer thrive in the creek-bottom cover and lake margins, using grassland edges for feeding while maintaining access to brush and timber for bedding. Mule deer utilize more open prairie but concentrate where vegetation offers cover—around water and scattered timber stands.

Hunt strategy centers on water access and creek systems; glassing open grassland typically proves unproductive. Early morning and evening hunting near water features and creek beds offers best chances. Success depends on private land access—identify cooperative landowners, hunt their preferred areas intensively, and respect property boundaries to maintain relationships for future seasons.