Mount Whymper Skier Triggered

Interesting day out on Mount Whymper N Col. Intended to ski the N Col and the bottom of X Couloir. ECT 30 NF at fan of the couloir with HS of 200cm, however whoomphing and shooting cracks were present at the beginning of the approach. Turned around and headed up the N Col. Skiing was a mix of hard wind crust, heavy powder and awkward turns with no major signs of instability other than one very small wind slab release. Then the day got more interesting. Two skiers ahead of us skied the main tree line shoot at the base of the approach with no issues, then the first member of our group skied slightly skiers left of there tracks the get fresh turns and triggered a relatively large slide. Shown in photos, crown was roughly 40cm deep and 50 ft wide, run out was almost to the bottom of the chute roughly 300+ feet. No injuries as the skier had picked an island of safety and skied to it once the slap released. Good reminder that terrain selection is very important. The first two skiers were on the right side of the chute which was sligtly less steep and less convex than 30 feet to skiers left where our group member triggered a slide. Good lesson learned and the McDonald's at the end of the day made for a nice reward.

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