764-1152 - Two blacktail prairie dog (Cynomys ludovicianus) sharing something to eat, Wind Cave National Park, South Dakota, United States of America, North America
764-1150 - Four barn swallow (Hirundo rustica) chicks chirp as parent approaches nest with food, Custer State Park, South Dakota, United States of America, North America
390-2520 - Heads of Presidents Washington and Lincoln, Mount Rushmore National Memorial, Black Hills, South Dakota, United States of America, North America
390-2514 - The giant head of President Abraham Lincoln, Mount Rushmore National Memorial, Black Hills, South Dakota, United States of America, North America
390-2515 - Visitor looking over rugged landscape from the Badlands Loop Road near Panorama Point, Badlands National Park, South Dakota, United States of America, North America
83-8063 - Part of the North Unit of Badlands National Park, carved out of the prairies by rapid water erosion of sediments, South Dakota, United States of America, North America
29-2642 - Gullies eroded into the Pierre shales below Loop Road, Sage Creek wilderness, Badlands National Park, South Dakota, United States of America, North America