Analysing terrain data
The exposure grade does not take into account objective hazards (stone fall, seracs, etc) but only the consequences of 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): Certain death in the case of a fall.
For those who want to try something different or avoid the mogul field of the Grand Couloir, there are several variations possible, the most common of these which is about the same difficulty as the Grand Couloir is the Epaule or 'shoulder' couloir.
Start as per the Grand Couloir but head further skiers left to the entrance of the couloir.
The line can be reached from P2 or the higher entrance from the old disused Dome/Trifides 1 drag lift which takes in the couloir above.