Prairie in Badlands National Park of South Dakota. Badlands National Park consists of 244,000 acres of sharply eroded buttes, pinnacles and spires blended with the largest, protected mixed grass prairie in the United States. The park has been shaped by erosion, and is home to many Oligocene fossils.
Trellis drainage through the Badlands of South Dakota. Trellis drainage is an arrangement of surface drainage characterized by parallel main streams that have right-angle tributaries. It is commonly developed where the beveled edges of alternating hard and soft rocks outcrop in parallel belts.
The White River Badlands of South Dakota. View of outliers near Weta, SD. The term badlands refers to an intricately stream-dissected topography which develops on surfaces with little to no vegetative cover. Image taken in April 1966.