Dorsal Don

Climb the left arete on the narrow side of the Humpback boulder between Killerette and the Humpback face with it's variations. Either climb the low angle right side with the corner in your left hand on the arete or on the opposite side with the arete in your right hand and your body on the vertical Humpback face. Either way is perhaps 5.7 and highly featured.

Left corner of the narrow Humpback boulder side opposite of Moby Dick. Between the low angle Killerette and the short Humpback face on the uphill side of the boulder.

Not necessary.