2021 Map of Spring Lake

About this map

Spring Lake and its surrounding wetlands define this prairie landscape in Walworth County. The terrain is a network of intermittent water bodies and depressions typical of the Missouri Coteau region, where drainage is primarily internal or through small watercourses like Swan Lake Cr. The map reveals a strictly regulated section-line road grid, including north-south corridors like 315th Ave and 319th Ave, and east-west routes such as 134th St and 137th St. These roads mark the boundaries of agricultural plots within townships T123N and T122N, illustrating the persistent influence of the Public Land Survey System on the modern South Dakota countryside.