My brother and I anchored to a large boulder looking southward. We generally do not anchor to loose or wedged boulders, but in this case, for the photo, we did. The belay station is also anchored behind the boulder which you can't see, and we have done this route before.
We climbed this formation several times, and as with most of the formations, the southern-exposed edges have the least amount of lichen, moss and loose rock, creating a superior surface for friction. These sun exposed edges also have a dubious tendency to be the most difficult to protect, with very few weaknesses to accept anchors.