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.
Le Fou is a beautiful isolated peak between the Vallon d'Arby and the Hidden Valley.
The North Couloir is a steep and serious line for experienced skiers only.
From the summit of Le Fou, follow the North West (Crete des Mounins) ridge until around c2400m where you can identify the entrance to the couloir.
The line is committing and there is serious avalanche risk on the face.
You should be very sure about the avalanche conditions before starting down the line.
At the end of the couloir you rejoin the end of the Hidden Valley and take the path back to Prarion.