Campgrounds near Mount Rushmore
I forgot to mention. You do not want to come to the Black Hills during August. That is when they have the Sturgis motorcycle rally. It's like a swarm of locusts on motorcycles all over this part of the state. They come early. They leave late. There are people in the Hills who leave during that time.
Prices are higher everywhere in SD during the rally on everything. 200 miles away, the motel prices are the highest during the rally only.
On the Humorous Side. I was in a convenience store during the rally last year. Like many convenience stores, they sell these cheap little pocket knives for something like five bucks. During the rally, they put a sign on them saying: "Sturgis Knives". I saw that and thought it was the peak of commercialization for the rally. Since then, I have always bugged them about it by pointing to the chicken they sell and saying: "Can I have some of that Sturgis Chicken?"
RonP