badlands national park in south dakota

america american badland badlands beds butte clay dakota desert destination drought dry dust earth eroded erosion famous forest formation fossil fossils geo geological geology grass grassland grasslands grounds horizontal hunting indian indigenous lakota landscape landscapes meadow mixed moonscape mountain mountains national native natural nature oglala outdoor park pine pinnacle place prairie reservation ridge road rocky rugged sand sandstone scenery scenic sedimentary sioux soils south spires summit tourism travel usa wild wilderness wonder