2015 Map of Moreau SE

About this map

Missouri River waters dominate this landscape, flowing through the heart of the region where Dewey and Walworth counties meet. The impoundment of Lake Oahe defines the modern shoreline, flooding the lower reaches of seasonal drainages such as Three Legs Cr and Fielder Cr. This contemporary survey reflects the sprawling reach of the reservoir within the Missouri River trench, a geographical feature that has dictated movement and settlement in north-central South Dakota for generations. Transport across the upland plains is marked by a network of rural routes, including Bia 808 on the western side of the water and traditional section-line roads like Swan Creek Rd and 146th St to the east. The map highlights the intersection of tribal and county jurisdictions amidst a terrain of dissected breaks and wide water.