Get ready for one of the most unforgettable drives of your life on the Needles Highway. This 14-mile road winds its way through the heart of Custer State Park, demanding a slow, appreciative pace as you navigate its sharp curves and pigtail bridges. You'll thread your vehicle through impossibly narrow tunnels carved from pure granite, like the famous Needle's Eye, and be surrounded by towering rock spires that give the highway its name. Pull over often, as the drive offers access to the stunning Sylvan Lake and numerous trailheads for a closer look at the incredible landscape.