Grandjean has several campsites, some on the river, some not. Some of the sites would accommodate smaller truck bed campers and maybe trailer campers. We tent camp and needed the 4-wheel drive to get to the end of the road. I didn't see any RV sites, there might be one or two around but its unlikely that there would be hookups of any kind. There might be a restroom off the main road on the way toward Grandjean but there were none close to any of the campsites around us. I would describe this as remote car camping. Established tent sites and fire pits, beautiful scenery, privacy and not a lot of extras. The Sawtooth Lodge is up the road and does offer RV space, tent camping and cabins. I am speaking of the rustic camping sites between Highway 21 and the Sawtooth Lodge.