Track down people that have climbed up there. I'd ask Mark Synott, some googling should get you in touch without too much stress. Seems like a cool guy who would share info he has and point you in the right direction. You'd be amazed who will help you out if you're psyched and serious.
Contact Doug Dickens @ firstname.lastname@example.org. He established the route "The Experience," with Brian during a Geology Expedition to determine the age of the major formations and the amount of time that they have been released by the glaciers there. Groundbreaking work.