1970 Map of Steamboat Creek

About this map

Lake Oahe dominates the western edge of this 1970 landscape, creating a series of deep inlets including Steamboat Bay, Dodge Bay, and Latin Bay. The map captures the shoreline during a period of transition as the Missouri River reservoir reached its recorded elevation, flooding the lower reaches of Steamboat Creek. The area is organized into distinct rural townships including North Riverside, Fayette, and South Riverside. Educational and civic life is anchored by the Appomattox Sch in the Appomattox district, while the boundary between Walworth and Potter Counties marks the northern extent of the sheet. The terrain transitions from the inundated river valley to the upland plains, illustrating the early impact of the reservoir on the local ranching and farming landscape.