2021 Map of No Heart Creek SE

About this map

Lake Oahe dominates the southern reaches of this landscape, marking the flooded valley of the Missouri River where it forms the boundary between Dewey County and Sully County. The topography is defined by the intricate, finger-like inlets created by the rising waters of the reservoir, most notably at Willow Creek Bay in the northeast. This 2021 survey illustrates the modern shoreline where the Missouri's course was permanently altered, showing how secondary drainages like Fairbanks Cr and Splits Cr now feed directly into the expansive lake. The map provides a clear view of the Public Land Survey System grid that organizes this prairie terrain, intersected by the lone named corridor of 182nd St as it approaches the river bluffs from the east.