1986 Map of Chamberlain

About this map

Lake Francis Case dominates this mid-1980s landscape, where the Missouri River corridor serves as the primary geographical axis for central South Dakota. The twin settlements of Chamberlain and Oacoma flank the river at a critical crossing point for Interstate 90, illustrating the region's reliance on both the water and the modern highway system. To the east, the extensive Red Lake and the Jorgensen State Wildlife Refuge indicate a terrain managed for conservation and waterfowl. The map reveals a transition from the structured town plats of Pukwana and Kennebec to the more winding, natural drainages of the White River and Moccasin Creek to the south. Significant landmarks such as the Bijou Hills and the winding Horseshoe Bend provide a sense of the varied Missouri Plateau topography before the land flattens into the expansive agricultural sections and game production areas characteristic of Brule and Lyman Counties.