Unit 59B

Water features dominate the navigation landscape in this featureless prairie. Cottonwood Lake and Stone Lake serve as primary reference points in the western portion, while Walker Lake, Durrstein Lake, Mundt Lake, and Post Lake provide eastern and central navigation markers. These shallow prairie reservoirs and natural lakes are scattered across the unit at irregular intervals.

The communities of Agar and Onida sit on the unit periphery and offer staging points for logistics. Grid-pattern roads align with section lines and provide predictable navigation with minimal confusion; road density is high enough that most locations are easily accessible by vehicle from nearby highways.

The entire unit sits in the prairie grassland zone between 1,600 and 2,000 feet elevation. Grassland and cultivated prairie make up the vast majority of land cover with virtually no forest. This is wide-open country with scattered patches of native grass, extensive grain fields, and periodic hay meadows.

Water-dependent grassland habitat transitions seasonally based on moisture and agricultural practices. Topography is remarkably flat with gentle slopes and no ridge systems or elevation breaks to funnel game movement. The uniform terrain offers clear sightlines across short distances but minimal natural terrain features to concentrate wildlife.

The connected road network with 1.6 miles of road per square mile makes physical access straightforward. Well-developed county roads and section-line routes provide easy vehicle access to nearly all terrain. However, the critical limitation is that 94% of land is private property.

Public hunting opportunity is severely restricted and concentrated on small public parcels near the scattered lakes and reservoirs. Access strategy requires identifying public easements, wildlife areas, or private land with hunting permission. Road density and easy navigation reduce logistics difficulty, but the scarcity of public land means pressure concentrates heavily wherever public access exists.

Early-season and midweek hunting on public ground may be essential to avoid crowds.

Unit 59B encompasses roughly 480 square miles of central South Dakota grassland between the communities of Agar, Onida, and Eakin. The unit sits entirely within the glaciated plains of the state, characterized by gentle rolling prairie with no significant elevation changes. Geographic boundaries follow county lines and township sections typical of the agricultural heartland.

Public land makes up only 6% of the unit, creating a fragmented hunting landscape where private land dominates. The accessible terrain is straightforward and lacks natural barriers or major geographic features that define hunting pressure patterns.

Water availability is moderate and concentrated in discrete locations rather than distributed through drainage systems. Shallow prairie lakes and reservoirs including Mundt Lake, Post Lake, Cottonwood Lake, Stone Lake, Walker Lake, and Durrstein Lake anchor the unit's water features. These are reliable seasonal water sources that concentrate wildlife in their vicinity.

The flat terrain creates limited natural drainage systems; water doesn't flow through valleys or canyons but collects in glacially-formed basins. Surface water quality and availability vary seasonally with precipitation. Hunters should plan strategy around these known water points rather than expect perennial streams or continuous water access across the open prairie.

Unit 59B holds mule deer and white-tailed deer as the primary game species. Both species utilize the grassland and cultivated areas for forage, using lakes and water features as focal points for daily movement patterns. Without significant topography, deer movement follows food and water sources rather than elevation patterns.

Early season offers opportunities to hunt feed-heavy areas near crop fields during dawn and dusk movement. Water-hole hunting near the named reservoirs and lakes can be effective during warm periods. The flat terrain and open grass make stalking and glassing feasible across short to moderate distances.

Success depends heavily on locating public access or gaining private land permission; focus effort on understanding local land ownership patterns and prioritizing public wildlife areas or easements where available.