This news story caught my attention because the climber was from Maine, he was a fellow alum of my college, and Jasper National Park is one of my favorite spots.
In April 1989, Maine geologist and climber William Holland was ice climbing the frozen waterfall Slipstream (Grade 6) on Mount Snow Dome in Canada's Jasper National Park. After he and his climbing partner, Chris Dube, reached the top of the climb, Holland was probing the ground with a ski pole, searching for a safe route down, when a cornice collapsed beneath him. He disappeared.
Rescuers searched for Holland's body for a week, but weather, avalanche, and icefall prevented recovery.