1967 Map of Mobridge NE

About this map

The Oahe Reservoir dominates this mid-1960s landscape, illustrating the controlled inundation of the Missouri River valley along the border of Campbell and Corson Counties. The map reveals the precise Standing Rock Indian Reservation Boundary as it follows the river's original course, bisecting the modern waterway. On the western shore, the undulating terrain of Wakpala rises above the flood zone, while the eastern banks are carved by drainages such as Locke Creek. This survey was conducted just as the reservoir's normal pool elevation of 1596 feet was becoming the defining feature of the regional geography. The presence of fine red dashed lines throughout the uplands indicates field lines and livestock fencing, providing a detailed view of the rural land divisions and agricultural use adjacent to the newly formed lake.