Let me just say that driving Iron Mountain Road from Custer State Park to Mt. Rushmore in a 12 passenger van was definitely a terrifying life experience!!! (Lay on the horn before you go through single car tunnels if you're blinded by the sun and can't tell if someone is coming the other direction!!). The first view of Rushmore in the distance, framed by trees, though- priceless!! Mt. Rushmore seemed more impressive to me in person, photos don't do it justice. Definitely one to go see!!