Reservations only, most sites are level and spacious. There is a general store on site with firewood, propane, food items, gifts, camping gear, (hitch pins even, I lost mine). There is a swimming pool and even an outdoor theater. Clean bathrooms and heated showers. 

Ironically, we stayed at the worst campsite there, it was downslope, and they had recently cut down many trees and the site was a muddy mess. Every single other campsite (and we drove the whole thing) they were perfect, so I will not let that affect my review, though I do wish they would have noted the listing.