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.
When you take the Colorado piste cut to the right and you get to a steep area with some little rocks, fun to drop off, and some trees.
After that you have a flat fast part till you get to and old abandoned lift building.
Here you'll see a couloir going to the right between the forest to finish on the Brigitte piste.