There is an Upper Loop Campground and Lower Loop Campground. I stayed in both for a total of 5 nights. Upper 4 stars and Lower 2 stars. There is a little more space per campground in Upper. Lower sites are very close to each other. Some RVers run generators and if you are downwind from a diesel one you get the fumes. Same with campfires and smoke. I'd stay in certain sites in Upper again. I won't stay in Lower again.