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FATMAP difficulty grade
This couloir is super steep and punctuated by a rock headwall.
There are two ways around this: 1.
Climb the rock rib looker's right of the headwall (Class 5.2). 2.
Climb an ice-covered chockstone in the couloir. Either way, a rope is probably warranted.
To top it off, there's a cornice once you're past all this if you're up here early enough. Approach via the Isabelle Glacier.
This is the second-to-last couloir to the climber's right on the cirque.
Once you've made it to the top it's a quick jaunt to the summit, but it's not a cakewalk to get there.