Mt. Sill from the foot of Polemonium Glacier
Key:
1,2,3,4 - Gully numbers, as per route description text
X - This is where gully 3 becomes class 2-3
Green line - we would have tried to descend this way, maybe, if we hadn't gone down gully #1
"notch - a short class 3-4 pitch here
Another possible route is off the left side of this picture.