Clover Creek Road is damaged from flooding. 4WD or high clearance 2WD recommended.
Fast in places, loose in others, pretty fun throughout, upper Primer is the more scenic and interesting half of the Primer loop. It's a more challenging run back to the trailhead from the teepee rocks. Yes, there is a sand dune in the middle of this trail, no, it won't ruin your day. Some turns are pretty flat and loose—trust your tires, lean, and don't skid.