2021 Map of Roundtop

About this map

Oglala National Grassland dominates this portion of Sioux County, characterized by a complex drainage network where Sand Cr and Dirty Cr carve through the high plains. The landscape is punctuated by distinct geological formations like Pine Butte and the Mike Kern Hills, alongside the namesake Roundtop summit. Human settlement is sparse, marked primarily by the location of Joder and water management features such as Norman Reservoir and Speas Reservoir, which are vital in this arid environment. Genealogy researchers will find the Union Star Cem located along Milford Rd near the southern boundary. This map also details an extensive trail system for modern navigation, including the Toadstool-Loop Trl and Bison Trl, which navigate the eroded breaks of Cedar Canyon.