Watch Movies2Watch. In October 2019, Benjamin Védrines and Nicolas Jean climbed the northeast couloir (1,500 m, M3/M4, 65°) of Chamlang (7,321 m, Nepal) to an altitude of 7,240 meters, using alpine style with a bivouac. The young French team had initially aimed for the north pillar of this mountain, a favorite among top climbers. Although they had to abandon their ascent of the northeast couloir, their climb was selected for the Piolets d'Or "big list."