We plan to go to the Black Hills area during peak vacation time -- late July. Custer State Park is booked solid and we are tentatively booked at Big Pine Campground. However, they don't have the days we would prefer, so we are considering others. We like relatively quiet campgrounds, with just a few amenities for our teen boys (maybe a basketball court or ??). Considered Rafter J, but only their Main Campground (would prefer the less busy Ranch area) is available and it's a bit expensive. Thanks all!