2024 Map of Blackwater Lake SW

About this map

Lake Sakakawea dominates the southern landscape of this McLean County region, where the reservoir waters have reshaped the historic drainage of the Missouri River. The map illustrates the complex shoreline formed by flooded coulees, most notably at Nishu Bay and where Sixmile Creek enters the lake from the north. The terrain transition is sharp between the high, gridded upland prairies, marked by rural routes like 67th Ave NW and 14th St NW, and the low-lying wetlands of the river valley. For those researching local burial sites and family heritage, the Beaver Creek Cem is situated in the southwestern portion of the quadrangle near the boundary of Mercer County, serving as a permanent landmark in a landscape significantly altered by mid-century water management projects.