Chossy's Nice Twin

This unfortunately named climb ascends the zig-zagging hand crack on the north side of the Petroleum Based Buttress. Start on thin face moves to gain the crack. A few strenuous jam and layback moves are required to gain a ledge. From here, cop out up a dirty crack to the left, or continue up the unprotected but easy arete to the anchors.

This is to the left of and facing Building Blocks. It is the leftmost of two cracks in the narrow face.

The crack takes excellent gear to about 1" and has two bolts at the top.