I've stayed a few times at Lionshead RV Resort. It's about 7 miles west of town.. right behind the Super 8. Last time we were there the cafe burned down.. but, pics look like it's been replaced with a fancy cafe. It was a nice convenient place and the rates were quite good for being so close to Yellowstone. Camping is on grass. We'd go back. I remember some in town.. but they were cramped. Probably didn't see them all