I will be going to Four Trees Rd for a little jaunt on Sunday May 19. It is located about 20 mi north of on Hwy 70 Oroville, CA. I have not been on this one before, but The Northern Recon Group visited this road and turned around and went back. Too rough for restored vehicles. I understand that there are numerous washouts on this roads. We plan on visiting an old mine, so bring a light if we can get in safely. The road dwindles to just a trail on my off road map, so that is always promising for a challenge. PM me if you are interested in going.