2021 Map of Presho NW

About this map

Fort Pierre National Grassland dominates the northern reaches of this Lyman County landscape, preserving a vast expanse of mixed-grass prairie. The terrain is defined by the drainage patterns of Medicine Cr and Stony Butte Cr, which carve through the undulating plains. Transportation history is visible in the alignment of Old Hwy 16, running parallel to modern transit routes and reflecting the evolution of cross-state travel in South Dakota. The map meticulously records the section lines and township boundaries, including t106n r78w, that have organized these agricultural and grazing lands since initial settlement. Local access is provided by a grid of rural roads such as 300th Ave and 236th St, which serve the scattered farmsteads and ranching operations characteristic of the region.