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2021 Map of Black Horse Butte NW

Name: 2021 Topographic Map of Black Horse Butte NW
Creator: U.S. Geological Survey
Published: 2021
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2021

About this map

The Grand River National Grassland dominates the southern reaches of this landscape in Corson County, South Dakota. This portion of the Great Plains is defined by the winding course of the Grand River, which meanders through the northern sections of the map, fed by several significant seasonal tributaries including Thunder Hawk Creek and Cottonwood Creek. The drainage patterns of Cyclone Creek and Deer Creek emphasize the intricate dissection of the prairie by water over time.

Transportation in this rural expanse is dictated by a grid of local routes such as Thunder Hawk Rd and 209th Ave, which provide access to the vast grazing lands. The map preserves the township and range survey lines that historically partitioned the land for settlement, specifically within T21N, T20N, and T19N, illustrating the sparse but organized human footprint on the grasslands during the early twenty-first century.