2021 Map of Mobridge NW

About this map

The Missouri River carves a deep path through the boundary of Corson Co and Campbell Co, where the impounded waters of Lake Oahe have reshaped the traditional riverbank geography. This modern survey illustrates the expansive reach of the reservoir, including the inlets of Rogo Bay and the drainage of Fisher Cr. The topography is defined by the sharp transition from the uplands down into Moosquit Valley, a low-lying area south of the primary river bend. Significant creek systems such as Leavenworth Cr and Mad Bear Cr cut through the high ground, providing a detailed look at the drainage patterns that feed into the Missouri. This map is particularly useful for understanding the current shoreline and the remaining terrestrial landmarks in a region significantly altered by mid-century hydraulic engineering.