Stock photography, photos: Pronghorn Antelope 344 Stock photos of Pronghorn Antelope on the plains of South Dakota. Photograph: © Jim Parkin Click for a larger image and more information Keywords associated with this stock photo: usa, us, united states, america, sd, south dakota, dakota, midwest, badlands, national park, tourism, travel, wildlife, antelope, pronghorn antelope, plains, prairie, horizontal