Linda - I found this campground in the Trailer Life Directory, and I camped there in July 1999.
Campground Review
This is a busy campground, but well maintained with a number of activities available such as mini-golf, nice pool, gameroom, restrooms and showers, gift shops and laundry. It is near Custer State Park and Mt. Rushmore which is very interesting. They also had small live theater productions which we all enjoyed.