This is dispersed campgrounds that's beyond belief. The sites had their own cabana with a picnic table but no trees and no water. There was a vault toilet that was guarded by a field of prairie dogs that cheeped at us like we were invading aliens from outer space, There was also a herd of Bison that came into the camping area and on one occasion I woke up to find one within 5 feet of my tent just munching on grass. I arrived the last week of May but it was still pretty hot, there were a few raining windy nights and I ended up crashing in the car my last night but that didn't take away for the fact that it was wonderful. I stayed for 4 nights and hiked around the park during the day.