Analysing terrain data
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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.
To access these chutes, you will follow the Mt.
Helen East Face Route to the Pacific North Couloir Route.
Each route is pretty self-explanatory and offers nice steep skiing.
Skin to the bottom of your selected line as far as you can, then you will have to switch to a boot pack.
Make sure you scout the line as you hike it.
From lookers right to left, the lines basically get wider and wider.
If you have the time, you can check out the Pacific Tarn that sits above these lines, it is the highest lake in North America.
The lines are each about 900-1000ft of vertical.