In Messier's no-longer-available online guide to Mission Gorge, pro for the True Skyline Arete is listed as being the same as that for Skyline Arete. This needs some clarification. Although I've led the true arete several times, pro is hard to come by. The bolts of Skyline Arete are well to the left and the bolts of Orange Walk are well to the right, so you'll wander a bit on lead. The crux is simply staying on the arete, rather than climbing the face. If just leading at the grade, this one is best first done on top-rope. Start as for Skyline Arete but follow the small crack up and right from the pod. From the ledge, climb straight up the arete proper, finishing at the anchor atop this pinnacle. To descend, walk past the tree and onto the hillside and head down to the right at the last chute, continuing back right to the base of the climb.