1939 Map of Chamberlain

About this map

Chamberlain and Oacoma anchor this 1930s landscape where the Missouri River carves a wide path through central South Dakota. The topography reveals a pre-dam era river system, featuring prominent landforms like American Island and Bice Island before major mid-century Missouri River basin projects altered the shoreline. On the east bank, the town of Chamberlain serves as a hub for the Chicago Milwaukee St Paul and Pacific railroad, while the west bank is dominated by the expansive Lower Brule Indian Reservation. Local civic life is documented through numerous rural schoolhouses, such as Prairie Star Sch and Hanson Sch, alongside the C C C Camp and Grace Mission. The confluence with the White River in the south provides a geographic marker of the transition into the Iona region.