2021 Map of Moreau NW

About this map

The Missouri River and the sprawling northern reaches of Lake Oahe dominate this landscape on the border of Corson and Dewey counties. The terrain is defined by a dense network of drainage coulees and creeks that feed into the reservoir system, including Deadman Cr, Thompson Cr, and Timber Cr. This area represents the high plains of the Cheyenne River Reservation, where the topography is shaped by the significant water management projects of the mid-20th century that transformed the Missouri River valley into a series of massive reservoirs. Local transportation is facilitated by a grid of rural routes such as Co RD 14 and Bender St, which navigate the dissected uplands between the creek beds. The map provides a clear view of the complex shoreline and the numerous inlets formed by submerged tributaries like Chicken Cr and Le Beau Cr.