When I last visited (King Peak to Mattole River) there was a lean-to shelter on the summit of King Peak. Is it still there?
Briceland Road is closed at Needle Rock. We were told there was a washout before the summer of 2012 between Needle Rock and Bear Harbor with no plans for repair. So add the 2.7 miles on to the hiking distance. Also the Usal Road between Usal Campground and Briceland Road is very rough and rutted and not recommended for low clearance 2-WD even when dry.