I camped here for two days recently with my wife in a 26 foot travel trailer.  We entered the campground around 10 am and were able to quickly find a nice spot at the outer perimeter of the campground with a view.  This was campsite B7.  It was level, with a fire ring, free wood, clean aluminum picnic table and maybe 150 feet from the clean and well-maintained restroom with flush toilets.  Water is available from nearby spigots.  There are lots of trees and the campground hosts maintain the peace and quiet.  There are no water, electric and sewer sites, which was fine, since we are used to dry camping.  I think that the lack of services makes it easier to find an open spot.  Of course, there was great access to Devil's Tower.  We really enjoyed the hiking trail around the base of the Tower.  It is easy, and is asphalt paved all the way.  There are other trails as well, but not paved.  I was very happy with our experience here.