I have also seen at some/many USFS sites that they have, "tent and soft wall camper " sites. The pad is designed for a tent, but you are welcome to park your pup on the tent pad. Usually involves some moving the pup around by hand after disconnecting the TV. They are always dry sites, but it seems a popular way to go. Last one I was at, of the 75 sites there were 30 tents, nearly as many pups and a few truck campers, and one TT looking very out of place. Pup is still an RV, but there are a few fun exceptions that, err, pop up.