390 starts off a little overgrown, but it opens up shortly after. It's a short drive with quite a bit of vertical, but 4WD and a decent amount of ground clearance are highly recommended. The road is crossed by anti-washout berms at least a dozen times, and they're pretty severe. Unfortunately they don't photograph well, and the road was too narrow to get a side shot with the truck on them.
There is a fun little campsite at the very top, and a couple on the way up, but none of them really seemed level enough for ground tent usage. It would be quite nice for a vehicle-mounted one.