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.
90's is one shot in what is commonly referred to as just The 90's.
It is has a fun, consistent pitch for roughly 450 feet.
At the top there is a small, 10 feet rock feature to jump off of if you choose.
For much of the run there are trees on both sides, which shields it well from the wind, so snow can often accumulate well.