Clarification via e-mail from my dad:
This is the western-most Yak. The photographer would be standing on the ridge crest, probably on the climbers trail itself. One must scramble down a few feet into a cleft (if I remember correctly) and cross over to the base of the chimney. Hey, that's the best I can do after 30 years. I could draw a picture, I guess, scan it and send it to you.