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.
Z Fan is the wide open powder field at the bottom of most runs in D Route.
It is usually nice pow until later in the year when the sun can affect it a little bit.
It often has sluff piles that run out into it from early morning control work.
There are some heat vents in the rocks on the North side, so beware of these.
Also, the South Bowl Traverse runs across the bottom, keep that in mind when you're skiing.