If you go to the link jeffcarp mentions you will see these are primarily campsites for tents; though some have RV. This is a campground; not an RV park. t There is a difference for sure.
A great major of the RV parks do not allow tent camping or have a very limited section of it; in fact, nearly all of the 178 we have done here in the 11 western states and 2 western provinces did not allow tents. And we are staying a very good rv parks, but not luxury ones.