Large explosive triggered slide at Y.C. deep crown

Deepest part of crown from slide triggered 3/2 by the YC Ski Patrol conducted avalanche mitigation work above one of their roads. A 2lb explosives charge was detonated from an aerial tram and triggered a R4/D3 avalanche that ran to the ground on depth hoar. The crown was 4', The max path width was around 250', and it ran 350 vertical feet to the bottom of the runout zone. The elevation was 8400' on a ENE aspect and max slope angle of 36 degrees. Photos courtesy YC Ski Patrol.