Ski 4.3 - 45° 200m - usually two rappels are needed. One at the top of the couloir (spike) another around 80 meters down (2 pegs) to get over a rock buttress.
Beware the lower face after the couloir is still rather steep and can suffer from serious avalanche. Exit skiers left to ski over a lower cliff band (often pure ice) into the Berrard valley - Buet.
A21 in the Chablais guidebook.
* This newly updated climb is waiting to be checked by the crag moderator.