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.
Where Cabane des Bois and Barmaz slopes split, you will see a picnic table.
You go straight down and slightly to the right.
Straight down you can find some big cliffs.
So if you continue to the left you will get into the forest until you get to the Le Plat slope.
Carry on down this slope until you can see the Cabane des Bois lift.
Here you go through the forest on your left.
Again you need to be careful not to turn too soon because there are plenty of cliffs.
You follow the couloir between the trees.
You could go all the way down until the Bovereche slope.
But if you pay attention you will see half way down an open area on your left.