2021 Map of Presho SE

About this map

The rolling prairies of Lyman County are defined by a strict section-line road network and the meandering drainages of the Missouri River plateau. Mill Iron Cr and Mission Cr thread through the draws, providing natural breaks in the geometric grid of agricultural land. The map illustrates a late-twentieth and early-twenty-first-century landscape where transportation is dominated by long north-south corridors such as 304th Ave and 302nd Ave, which intersect with east-west section roads like 248th St. This layout reflects the enduring legacy of the Public Land Survey System, with township boundaries for t104n r77w and t103n r77w organizing the sparse but persistent ranching and farming operations of south-central South Dakota.