Ijust got off the Trail about a week ago, About a mile out of Trail Camp descending, stay on the Left side and hike the Rocks and then 90 degree down towards mirror lake, as you Descend the tracks funnel down toward the waterfall which is frozen it's not vertical but extremely steep and not recommended one of my partners slipped and got lucky the other one slipped and hit his head with the ice ax(which was needed thru that section)