Here's a pic of the same (Laurel Lie) Buttress, showing not only the Unknown Dihedral (far right), but Woolyman 5.11 (center)  and Franklin Girls 5.7 (far left). Woolyman goes up a thin face with awkward sidepulls and a weird tiny gear placement about halfway up. It then (somehow) moves over the roof with a thin crack. FA: Scott Perkins, date unknown. NOTE on Woolyman: Scott P. says the route actually moves straight over the roof rather thann moving out left as depicted in the topo.