We camped there with our Class B van a couple of times. The road to the campground is pretty bumpy/washboard. If you drive very slowly it is okay.
The campground is very popular and reservations can be made through recreation.gov. I believe there are only two walk-in sites.
We enjoy driving up in a car and fishing. The last few times we were there we were amazed at how many people were up there. It was pretty noisy. But this was on a weekend.
Happy Travels.
Marilyn w/ Joe, 2016 Class C Sunseeker 2430 SF, often pulling a Ranger bass boat. Traveling with Trigger
Smudge & Gizmo are waiting at the Rainbow Bridge