2015 Map of Twin Lakes

About this map

Twin Lakes and Grass Lake sit at the geographic convergence of Jerauld, Sanborn, and Aurora counties in this South Dakota prairie landscape. The area is defined by a strict section-line grid of rural roads, including 394th Ave and 238th St, which trace the borders between these jurisdictions. The terrain is characterized by the intermittent drainage of Dry Run, which wanders through the northern sections of Township 106 North, Range 62 West. This 2015 survey illustrates the enduring agricultural layout of the region, where the land is meticulously partitioned into mile-square sections typical of the Public Land Survey System. The absence of concentrated town centers highlights a purely agrarian settlement pattern where individual farmsteads are linked by a vast network of gravel roads.