This route starts from the ledge atop the Black Tower Buttress and, as the name indicates, climbs the center of the headwall above. Approach via Crossbow (5.8) on the left side of the buttress or Black Tower Crack (5.6) which is on the right side of the butress facing east.
From anchors atop the buttress climb right a few feet to a bolt and then head straight up into a sweet, thin crack which leads to anchors at the top of the face. You may be able to link the approach pitch and this route into one longer pitch, but rope drag may be an issue; if considering this Crossbow is probably the better choice. Return to the ground in two short raps.