Analysing terrain data
The exposure grade does not take into account objective hazards (stone fall, seracs, etc) but only the consequences of the skier falling.
Low Exposure (E1): Exposure is limited to that of the slope itself. Getting hurt is still likely if the slope is steep and/or the snow is hard.
Medium Exposure (E2): As well as the slope itself, there are some obstacles (such as rock outcrops) which could aggravate injury.
High Exposure (E3): In case of a fall, death is highly likely.
Extreme Exposure (E4): In case of a fall, the skier faces certain death.
Very serious skiing with an incredible atmosphere for experts only.
A line even steeper than the Pan de Rideau classic.
It takes a more direct line via a 50-55 degree couloir to rejoin the classic Vallons route. Start as per the Pan de Rideau classic and after around 150m vertical head left to the snow arete and the entrance to the couloir.
From here follow a plumb line down the couloir and the glacier below to rejoin the Vallons route.
The line is very committing.
Pay special attention for icy patches or rocks on the initial traverse.