1972 Map of Riverdale North

About this map

The massive impoundments of the Missouri River dominate this landscape near the Old Ft Stevenson Mil Res Bdy, where the waters of Lake Sakakawea and Lake Audubon are separated by a narrow strip of land. This high-altitude perspective from the early 1970s shows the sophisticated water management infrastructure of the era, including the Snake Creek Pumping Station and a system of canals and dikes. Much of the shoreline and the large Mallard Island are dedicated to conservation, mapped as the Wolf Creek State Game Management Area and the Audubon National Wildlife Refuge.