2017 Map of Lone Tree Lake

About this map

The high plateau of the Coteau des Prairies defines the geography of this rural landscape, which straddles the border between Day County and Clark County. The terrain is characterized by a dense pattern of prairie potholes and wetlands, typical of the glacial history of this region in eastern South Dakota. Lone Tree Lake sits in the southwestern corner, while Mud Cr drains the northwestern section. Human presence is primarily represented by a regular grid of section lines and secondary roads such as Co Rd 42 and 420th Ave. For genealogists and local historians, the Saint Ansgaar Cem stands as a notable landmark near the center of the sheet, providing a focal point for the early settlement history of this agricultural township.