Walking next to the sill. A little further down there are old pipe holes in the sill where rails were installed. I have it in the video. Anyway, if you look ahead to the middle of the photo, you can see where some of the the sill is. And like I said, this area is full of snow well into July. Jeff said a week or so ago, they had to go off trail to the left to get around the snow in the section where he is hiking ahead of us now.