Schwartz ledges, Serac face of upper glacier and the Roof of Robson.
Over 2000 ft of vertical relief to the top in this picture for scale.
Route goes across the ledges, angles left up ledges and 30 degree snow to the ridge on the left, then to base of roof and then across right to join top of Kain face route. Can also climb straight up left side of roof on 40 - 50 degree snow.