I know very little about this area. There is some bouldering and sport climbing close to the river with easy access. This is upstream from the other areas and is accessed via another road.
Follow the directions to pine valley. At the 5.8 mile road post continue up the road (1 mile maybe) past the pine valley sign to a cattle guard. On the west side of the cattle guard there is a dirt road which heads south. Follow this till it more or less ends, going right at the fork. From here make your way towards the river. From the river their is sport climbing and bouldering downstream to the east, and some bouldering across the river.