FATMAP difficulty grade
Follow Plateau Hike to the plateau above this line.
Pole east across the plateau and very carefully locate the col at the top of this route.
Provided there is enough snow, and that that snow is stable, sideslip into the line.
Conditions are rarely good and safe so be fully prepared to bail into a different objective if this line doesn't look right. If you do drop in, you won't get lost - the couloir is very narrow (less than 4 metres at one point) and steep with it.
Ski carefully but try to enjoy the extraordinary ambience this line provides. Once at the bottom, traverse out left above the Dohlen Lake to rejoin the pistes.