2021 Map of Boland Ridge

About this map

Wind Cave National Park occupies the northwestern corner of this South Dakota landscape, where the rising elevations of Boland Ridge meet the intricate drainage systems of the Black Hills. The map details a rugged transition from protected federal lands into the surrounding Custer County terrain, defined by steep ravines like Fuson Canyon and the prominent Unkpapa Peak. This area serves as a critical hydrological junction, with seasonal and perennial waterways including Lame Johnny Cr, Blacktail Cr, and Beaver Cr cutting through the limestone and sandstone layers. To the south, the natural corridor of Buffalo Gap and the winding path of Calico Canyon illustrate the topographical barriers that influenced early movement through this region. Modern transit is represented by the north-south alignment of Old Hwy 79 S, providing a contemporary reference point against these ancient geological features.