Another vote for Mount Rushmore KOA. http://koa.com/campgrounds/mount-rushmore/ Very nice/clean CG with great amenities and good location with beautiful views. Very friendly and helpful staff. Very close to Mt. Rushmore and Crazy Horse, also Keystone and Hill City. When you go, check out the show at The Red Garter Saloon in Keystone. Did it on a whim and it was the cheapest things we did, but one of the most fun things we did while there. Lasted only about 30 minutes and is kid friendly. PM me and I will email you pictures of the CG if you like. Enjoy your trip! This was one of our most favorite trips. ~Todd