2012 Map of Promise

About this map

Lake Oahe dominates the northern landscape of this Dewey County region, where the Missouri River valley was transformed into a massive reservoir. The small settlement of Promise sits just south of the water, connected to the wider area by Promise Rd and Whitehorse Rd. The terrain is defined by a dense network of drainages that feed into the lake, including Virgin Cr, Beaver Cr, and Marshall Cr. For genealogists and local historians, the Saint Johns Cem is a significant landmark situated near the shoreline, overlooking the inundated valley. The map reveals the intricate natural hydrology of the Missouri Plateau, showing how numerous creeks such as Du Charme Cr and Tom Hill Cr carve through the prairie landscape toward the central waterway.