2021 Map of Irish Creek NW

About this map

The vast prairie of the Cheyenne River Indian Reservation takes form along the border of Corson and Ziebach counties. This 2021 topographic record reveals a landscape defined by its drainage patterns rather than dense settlement, centered on the winding course of Irish Creek as it moves across the southern half of the quadrangle. In the north, Archambault Creek cuts through the terrain, creating a network of draws and ridges that characterize the regional topography. Transportation is limited to a sparse grid of section-line roads, including Dorsey Road and County Road 315, which provide access to this remote portion of South Dakota. The map meticulously documents the Public Land Survey System divisions, showing the boundaries between Township 17 North Range 19 East and neighboring sections, which is essential for locating specific land parcels and tracking historic land use.