원정 개요

19 Dec making route to C4, then down to C2 because strong wind and cloudy. C2 little snowfall and down further. 23 Dec again to C3 and deposit C3 gear there and down same day. 4 or 5 times carrying gear to C3, but some carried below C3 because again strong wind and cloud and some snowfall.

After C1 established, no one stayed at BC. Fixed total 2000m. All rib fixed with double rope on very steep mixed rock and snow on South Face of rib and at big serac at top of rib.