2021 Map of Lonesome Lake

About this map

Coteau des Prairies, a vast upland plateau, dominates this landscape where the borders of Grant, Day, and Codington counties meet. The drainage pattern is defined by the winding course of the Big Sioux River and the Indian River, which meander through a series of prairie potholes and wetlands typical of this glacial region. Near the center of the sheet, Lonesome Lake sits as a prominent natural landmark, surrounded by a grid of rural section roads like Co Hwy 14 and 151st St. Cultural markers are sparse in this agricultural expanse, but the Bergen Cem remains a significant point of interest for genealogists and local historians. The map clearly delineates the complex township and range system, including t120n r52w, illustrating the geometric precision of the Public Land Survey System in eastern South Dakota.