Yellowstone Park KOA is a BIG campground. we stayed here in late July which is, apparently, their busiest time of the year.
The BBQ was great! Try the ribs. The pool seemed a little over used, but that can happen when you have many people using it, and it’s the middle of summer. We stayed in a 30 ft 5th wheel in one of the deluxe sites. The cable TV reception was a little fuzzy. I just had to hit it with a wrench.
Our site was uneven, but the staff immediately fixed that by bringing me some boards. If i had to rate this campground on a scale of 1-10, I’d give them an 8.