A size three, large, avalanche was human-triggered on Feb. 24, 2026, when a lone snowboarder went down Anniversary Glacier. (Pemberton Search and Rescue)Matteson's passion for the mountains went beyond snowboarding, he cared deeply about the environmental impacts. WATCH | 1 person dead in avalanche near Pemberton, B.C. : 1 person dead in avalanche near Pemberton, B.C. | Duration 1:53 A fourth person has been killed in an avalanche in British Columbia this season.

Source: CBC News February 27, 2026 16:44 UTC