2012 Map of Gannvalley SE

About this map

Glacial potholes and prairie wetlands define the rural landscape of southeastern Jerauld County on the edge of the Missouri Plateau. This 2012 survey highlights the methodical section-line road system that organizes the agricultural terrain, with north-south corridors such as 366th Ave and 371st Ave intersecting east-west routes like 225th St. The irregular hydrology of the region is evident in the numerous unnamed basins and seasonal water bodies that punctuate the grid, reflecting the natural drainage patterns of Crow Lake Township. While the map is sparse in named settlements, the precise layout of the infrastructure, including 368th Ave and 231st St, provides a detailed record of land use and accessibility in this part of South Dakota during the early 21st century.