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.
This wide chute is perhaps the most aesthetic couloir in Silver Basin.
Split by a rocky buttress partway down, Threeway Chute #3 offers numerous lines.
This chute is bordered by two rocky outcrops at the top, and it is steepest on the skiers right.
While this is an expert run, it is the easiest chute past Boxcar Cornice, and could be tried by advanced skiers ready to challenge themselves on expert terrain.
Watch for cornices at the top.
This slope avalanches regularly, and like much of Threeway Chutes, does not see much skier compaction.
Ski and ride with a partner.
Ski patrol recommends carrying avalanche equipment in Southback.