Approximate location of canal between Big Stone Lake and Lake Traverse, Minnesota ; Approximate location of dyke at north end of Lake Traverse ; Approximate location of canals, dykes & dam at south end of Big Stone Lake.

Map of the Browns Valley region on the boundary of Minnesota and South Dakota, showing the location of a proposed canal connecting the south end of Lake Traverse (in the Hudson Bay drainage basin) to the north end of Big Stone Lake (in the Mississippi River drainage basin) via the Little Minnesota River (shown as Minnesota River). Additional maps show a proposed dike at the north end of Lake Traverse (near the mouth of the Mustinka River) and a proposed dike and proposed canals at the south end of Big Stone Lake (near Big Stone City, South Dakota, and Ortonville, Minnesota). Coverage area includes portions of Big Stone County and Traverse County in Minnesota, and portions of Grant County and Roberts County in South Dakota. Also shows roads, Public Land Survey System townships and sections, various buildings and other features, and brief descriptions of land conditions.