Triple R Ranch Highway 16A Keystone, SD 57751-0124 Keystone, SD Ranches Battle Creek Campground 634 Old Hill City Road PO Box 437 Keystone, SD 57751 Keystone, SD Campgrounds Mount Rushmore/National Park Service Keystone, SD Landmarks Spokane Creek Cabins and Campground 24631 Iron Mountain Road Keystone, SD 57751 Keystone, SD Campgrounds Beautiful Rushmore Cave 13622 Highway 40 Keystone, SD 57751 Keystone, SD Archaeology