1982 Map of Miller Dam

About this map

Marple Butte rises as a prominent landmark in this prairie landscape, situated near the boundary where Ziebach Co meets Dewey Co. The 1982 provisional survey of the Cheyenne River Indian Reservation area illustrates a water-focused geography, dominated by the drainage systems of Cottonwood Creek and Little Bear Creek. At the center of the sheet lies Miller Dam, an essential piece of water management infrastructure in this semi-arid region. The map captures the territory before modern developments, showing a network of unimproved roads and trails that connect isolated ranching locations across the township lines of the Dakotas. The topographic detail highlights the complex erosion patterns and coulees that feed into the larger creek systems, providing an accurate record of the land surface as it was documented in the mid-1970s field checks.