2021 Map of Castlewood

About this map

Castlewood serves as the primary center of this eastern South Dakota landscape, situated along the winding course of the Big Sioux River. The terrain is defined by the unique geological formation of the Coteau des Prairies, a high plateau that creates a distinct drainage pattern across the region. To the south, the massive expanse of Lake Poinsett dominates the area, accompanied by the smaller Lake Florence, illustrating the wetland-rich character of the prairie. The map provides significant detail for genealogists, including the Castlewood Cem and Saint John's Catholic Cem on the eastern edge of town. A strict grid of county roads and avenues, such as Co Rd B and 455th Ave, connects the rural homesteads and smaller junctions like Kones Corner, showing a settlement pattern deeply rooted in the Public Land Survey System.