Quiet campground to stay in. Very pleasant, right next to the Salmon River. The entrance to this campground probably seems a little difficult, I did it with my truck and a 18 foot trailer and I had no problem at all. I think it is inadvisable to try to bring an RV into the Lower O'Brian campground, although you could walk from Upper to Lower and see for yourself. Regardless, Upper is really nice and peaceful and at night you really do get that feeling of solitude because this seems like a campground which is rarely full.