We really like the Game Lodge campground in Custer State Park. Always lots of wildlife to watch, it's peaceful and quiet. The down side is there is only 50 amp service, no water/sewer hook ups. But for a weekend for us and it's only 30 miles from home, we enjoy it. They have very nice clean bathrooms and even laundry facilities which we never see in any of our other state parks. The end of Sept. is the annual buffalo round up so if you are visiting then you won't get a reservation in Custer at any of the state parks.
Tom and Jane