Experience the road that engineers once said couldn’t be built. This winding road runs between Mount Rushmore National Memorial and the junction of US 16A and SD 36 in Custer State Park. Along the highway, visitors will find wildfire exhibits, pigtail bridges, magnificent Black Hills scenery, and tunnels that frame Mount Rushmore.
https://custerresorts.com/activities/scenic-drives/iron-mountain-road/
