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.
A series of open glades, The Doors is thus named for its various "openings" in the trees.
Officially this area is called Tree Run, but that name is losing popularity.
Each "door" reveals another long open slope through this otherwise heavily treed slope.
This is a great place to find good snow on a powder day.
Once Green Valley and the Frontside are tracked up, head to The Doors and work the edges of the trees.
You can often find a few fresh lines, but this popular run gets skied out by mid-morning.
The first two doors offer the longest vertical, but end up in the tight trees above the Sunnyside Road.
Watch for the transition onto this cat track, especially early season.
The two right-hand doors offer more options, as you can head right into more open terrain above Lucky Shot when the trees tighten up.
Either way, end up on Lucky Shot and continue to the bottom of Rainier Express for another lap.