2015 Map of Diermier Ranch

About this map

Diermier Ranch stands as a central landmark in this Ziebach County landscape, where the prairie is defined by a dendritic network of seasonal drainages. The area is marked by the winding courses of the W Br Ash Cr and E Br Ash Cr, which converge as they flow through the central townships. The small settlement of Chase is positioned near the eastern edge of the quadrangle, adjacent to the upper reaches of Cottonwood Cr. These geographic features, including the aptly named Girl Cr in the southwest, illustrate the traditional ranching orientation of this South Dakota region. The topographic detail provided by the U.S. Geological Survey captures the subtle elevation changes that directed early settlement and grazing patterns long before modern development altered the Great Plains.