Three Forks Campground Hill City, SD Campgrounds Twisted T Campground HC 87 Box 63A Hill City, SD 57745 Hill City, SD Campgrounds Alexander`s Slate Rock Ranch 11590 Gillette Prairie Road Hill City, SD 57745 Hill City, SD Ranches Horse Thief Campground and Resort Highway 87 S Hill City, SD 57745 Hill City, SD Campgrounds 1880 Train/Black Hills Central Railroad Hill City, SD Railroad History