Is there sites big enough for a camper or is it all tent camping

A camper can fit in some sites.

Yes on the camper. No to RV. Most spots only have room for one truck with out being part way out in the road.

I was barely able to squeeze a 25' trailer (plus tongue) in a spot. I then had to park my Tahoe partially on the bank at my site to get out of the road. It's a narrow, steep climb with switchbacks, too. I made it and had a decent time, but likely won't go back.