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.
Slightly further along Chainsaw Ridge, Bushwhip is the next line down after the rock band.
The entrance is the hardest part to this line, as it often requires negotiating a large and unstable cornice.
Check the entrance and line from below BEFORE attempting this one, its ski-ability depends on how the cornice has formed.
Bushwhip is a short line that spits you out on the lower part of Bushrat and ultimately onto Couloir Extreme.
This part of the Couloir is often subject to large chunks of debris.