Little four site camping area on the shore of Rivir Lake (not a typo). It can be accessed either by parking and walking in on the wide, well tended trail (#4 on maps) of by boating. The nearest boat launch is Miller lake, a mile west. Sites 3 & 4 are right on the lake with the best access, Sites 1 & 2 are across the trail which is along a raised berm with a bridge over the passage to Mud Lake.
I'd give this a higher review, but most people wouldn't appreciate the primitiveness of the sites. It's distance from most amenities could be a turn off, but also could be perfect for others