This is a great little campground. Especially since it's so close to a really awesome hike the Rings Trail and others in the area. Each campsite was clean and flat, the bathrooms were basic pit toilets but they were very clean also and there were water spigots through out the area.
It's about 14 miles of dirt road to get to this campground and there were no signs last time I was here. I made the drive in a 2wd cargo van and I saw an 80s Ford Mustang down there at the same time but i don't think I'd recommend doing that. A basic truck or SUV would have an easy time driving down.
The campground is down in the river canyon and there are only a dozen sites or so, many are tucked into the trees along the base of the hill and those are the best sites since they are shaded. The river runs along the edge of the campground with a beautiful trail that leads upstream, lots of great fishing, watch out for poison oak.
There are pit toilets and water faucets.
The campgound is a quite remote campground that is no where as busy as campgrounds like Fraiser Flat or Pinecrest. If you want to get away from people it's the place to be, but with so few sites you might make the drive down there only to find out everything is full. To me it's worth the risk.
There are actually two camp areas. There are two or three small sites at Frank Raines proper. As you turn into the park turn left and on the other side of the old softball field there are a few fire rings in the oak trees. I'm not sure where you go to pay for these but you occasionally see people camping there. There are porta johns in the area but the water is signed as not drinkable so bring your own…. or drive up to the Adobe Spring faucet at the 18 mile mark and fill your water jugs.
Just up the road is the OHV park with a large campground with bathrooms, tables, electrical hook ups, tables, flush toilets and fire rings. Lots of flat spots for rv and trailers and a hall you can rent out for events. It's also a popular OHV area so expect a lot of activity and noise at all times of the day.
Neither spot has drinkable water according to the signage, there is water, but you're not supposed to drink it.