wica25436 Prairie grasses on cloudy autumn morning. Wind Cave National Park, South Dakota, USA. http://www.terragalleria.com/panorama/np-image-panorama.wica25436.html wica25437 Prairie grasses at sunrise. Wind Cave National Park, South Dakota, USA. http://www.terragalleria.com/panorama/np-image-panorama.wica25437.html wica25438 Gently rolling hills with trees on ridge. Wind Cave National Park, South Dakota, USA. http://www.terragalleria.com/panorama/np-image-panorama.wica25438.html wica25439 Prairie, hills, and Ponderosa pine trees. Wind Cave National Park, South Dakota, USA. http://www.terragalleria.com/panorama/np-image-panorama.wica25439.html wica25440 Prairie landscape with wildflowers and trees. Wind Cave National Park, South Dakota, USA. http://www.terragalleria.com/panorama/np-image-panorama.wica25440.html wica25441 Meadow and young Ponderosa pine trees. Wind Cave National Park, South Dakota, USA. http://www.terragalleria.com/panorama/np-image-panorama.wica25441.html wica25442 Forest edge in summer. Wind Cave National Park, South Dakota, USA. http://www.terragalleria.com/panorama/np-image-panorama.wica25442.html wica25443 Boxworks underground formations. Wind Cave National Park, South Dakota, USA. http://www.terragalleria.com/panorama/np-image-panorama.wica25443.html wica25444 Cave ceiling with boxwork. Wind Cave National Park, South Dakota, USA. http://www.terragalleria.com/panorama/np-image-panorama.wica25444.html wica25445 Cave walls. Wind Cave National Park, South Dakota, USA. http://www.terragalleria.com/panorama/np-image-panorama.wica25445.html