From Boston Rocks:
this steep, zig-zagging crack is the best route in the area. As you enter the quarry, it's on the wall to the left. The direct variation is hardest, it's a bit easier if you hand traverse right halfway up, avoiding the desperate layback finish. Tape up, as the rock is quite sharp.
This one is hard to find. Use the map and refer to Boston Rocks
for coordinates. This quarry is in the same line of topography as The Navel and Dihedral. Just follow the topography around until you find this hidden quarry!