2012 Map of Oacoma

About this map

Lake Francis Case dominates the southeastern quadrant of this landscape, where the waters of the Missouri River reservoir meet the mouth of the White River. The town of Oacoma sits along the northern shoreline, its grid including streets like Main Ave and Dougan Ave, and is anchored locally by the Oacoma Cem. This area serves as a transition from the river valley to the higher ranchlands, where named properties such as Sharp Ranch and Lindly Ranch are situated among the drainages of American Crow Cr and Big Cr. To the south, the terrain shifts towards the edge of the Badlands, reflecting the varied geography of Lyman County. The presence of S Dakota Highway 16 and Interstate 90 highlights the corridor's role in transcontinental travel through South Dakota's river country.