2012 Map of Moreau SE

About this map

Lake Oahe dominates this central South Dakota landscape, its expansive waters filling the Missouri River valley and creating a complex shoreline of inlets and points. Along the northern reaches, the waters of Three Legs Cr flow into the reservoir, while the southern portion is shaped by the mouth of Fielder Cr. The terrain reflects the transition from prairie uplands to the inundated river valley, a landscape dramatically altered by twentieth-century water management projects. Remote section line roads such as 141st St and 146th St provide sparse access to the shoreline, marking the grid of rural Dewey County. This 2012 survey illustrates the relationship between the massive reservoir system and the quiet, undeveloped plains that define the region's geography.