The Magnificent Road to Rushmore
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.
Constructed in 1933 under the direction of Senator Peter Norbeck, only a portion of this road lies within the park, but it is a must-see.
Norbeck said of the Iron Mountain Road, "This is not meant to be a super highway, to do the scenery justice you should drive no more than 20 mph and to do it full justice you should simply get out and walk."