1970 Map of Mandaree SE

About this map

Lake Sakakawea and the flooded confluence of the Missouri and Little Missouri River dominate this early 1970s landscape within the Fort Berthold Indian Reservation. The map details the complex shoreline and inundation areas following the development of the Missouri River Basin, contrasting the massive reservoir waters with the high, arid terrain of the McGregory Buttes. Evidence of industrial development is visible through a noted pipeline and scattered drill holes, while the Little Missouri Public Use Area provides a point of recreational access to the expanding waters. The survey captures a moment when the managed levels of the lake were reshaping the geography of Dunn County, as indicated by the Fort Berthold Indian Reservation Boundary crossing both land and water.