Unknown Roof Problem

This is short but worth doing. Start deep under the roof on a blocky hold with your feet on the slab. Reach out to the obvious hold on the lower lip, and fiddle with various holds around the upper lip to establish your sequence for mantelling to the top. Lots of options at that upper lip, so do what works for you.

This is on the trail up to Arrowhead Arete on your left just after scrambling over the initial large boulders. You'll recognize it when you see a dead horizontal roof with a short slab below it and an obvious block hold at the lip.

A pad.