The campground itself is pretty and wooded, but definitely more suitable for tent camping. You'd have trouble even driving a bigger trailer or RV around the loop. There are some RV sites, but it's pretty much a separate campground -- across the highway and down a bit. The RV area is open and grassy, more like a park, and it's just a few sites. It's been a year and a half, but I *think* the area in the center here is the RV sites. It's well hidden, we didn't even find it until after we had driven around the campground and decided to stay somewhere else instead.
https://www.google.com/maps/@45.6200366,-122.0295576,258m/data=!3m1!1e3