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.
A steep narrow couloir for experts, Threeway Chute #2 is sharply bordered by two prominent buttresses.
Fifty feet below the entrance, the couloir funnels to its narrowest point, which is still wide enough to make turns, before widening out to the basin below.
Watch for a cornice that builds at the top, usually most prominent on skiers right.
This slope does not get much skier compaction, and avalanche hazard might linger here longer than other locations in Silver Basin.
Ski and ride with a partner.
Ski patrol recommends carrying proper avalanche gear.