Mixed route...first half is gear, second half is bolted. Gear section is mellow with big holds but fiddly gear. Bolted section is steep with big moves between big holds. Book calls it .10b, more like 10+/11-. Definitely harder than the ".11a" arete to the left.
Start about 50' to the right of the left end of the main wall. There are multiple crack systems here, the route starts on the right one and generally follows the cleanest line up and left.
5 bolts, gear to 3". Anchors up and left after last bolt.