1970 Map of Mandaree SW

About this map

Lake Sakakawea dominates this 1970 landscape, where its waters fill the basin at the confluence with the Little Missouri River. The survey depicts a transition in the Missouri River Basin’s development, showing the massive reservoir’s shoreline as it reaches into the broken badlands of Dunn County. The Fort Berthold Indian Reservation Boundary is clearly delineated, crossing both the open water and the dissected upland terrain. Smaller drainage networks like Moccasin Creek, Dry Creek, and Jim Creek feed into the primary water bodies, illustrating the complex erosion patterns of the region. Aside from a single Pipeline crossing in the northeast, the map shows a landscape largely defined by its natural topography and the engineering of the mid-century river management system.