start in the back on good hand jams, and feet in. Immediatly cut loose and get your feet above you and continue to kik through to the lip. Grovelmantel up. There is a long rail extension to this which climbs the first 3/4 then rails right 35 feet to the end. Marco-V7
From the base of the boulder field, walk the trail left then up following flag tape and a creek bed to the flat base of the wall. Go right(west) about 50m to the boulder. Trepanning is on the back(north) side of the wide boulder.