Continue down 550 past de Gaulles Nose
for a while, there is a large parking area that is surrounded by cable on your right (close to the Gnome Dome), park there. Follow the bike trail across the street up towards A-hole rock (stay left at the split and you will pass some rocks on your left shortly which have maybe 2-3 boulderable cracks), you will eventually make out a super faint clearing just off the trail to your right (a bit further down the trail) that was actually once an old road, follow it up the hill to the ridge line. Follow the ridge until you find the boulder pictured the problem faces A-hole, so you won't see it at first just check all the boulders on the ridge if you can't figure it out. It's maybe 1/3 to 1/2 way to A-hole rock.