The Badlands are a collection of buttes, pinnacles, spires, and mixed-grass prairies. The White River Badlands contain the largest assemblage of known late Eocene and Oligocene mammal fossils.

Hiking exploits and whatnot
The Badlands are a collection of buttes, pinnacles, spires, and mixed-grass prairies. The White River Badlands contain the largest assemblage of known late Eocene and Oligocene mammal fossils.