2017 Map of Oahe Dam

About this map

Oahe Dam anchors this landscape at the massive convergence of Lake Oahe and the Missouri River, marking a modern industrial threshold between the rolling uplands of Stanley County and Hughes County. Just downstream from the dam, the river transitions into Lake Sharpe, flowing past the northern edge of Fort Pierre. This geography is shaped by water management and high-plains terrain, where the rugged topography of Brown Hill and the broad expanse of Giddings Flat overlook the valley. Cultural history is etched into the landscape at the Scotty Philip Cem and along Ft Chouteau Rd, names that recall the region's early ranching and frontier trading era. The map also traces smaller drainages like Dry Run and local connectors such as Verendrye Dr, showing how modern infrastructure and residential roads like Whispering Shores have integrated with the river's historic course.