Access. Meanwhile, search and rescue workers are currently waiting for the right conditions to resume a recovery mission for climbers David Lama, Hansjorg Auer and Jess Roskelley who are presumed dead. To all backcountry users in Banff, Yoho, and Kootenay National Parks: It’s avalanche season again, and Parks Canada will be periodically conducting avalanche control on all avalanche paths that threaten major highways in Banff, Yoho, and Kootenay National Parks. Parks Canada responded to an avalanche that involved three people in the Canadian Rockies, the names of the survivors have not been released. Three of the world’s most accomplished and well known mountaineers have been killed after an avalanche in the Canadian Rockies. ACMG. Parks Canada. Three professional climbers are presumed dead after an avalanche in the Canadian Rockies, authorities say. Avalanche season in the Rockies Banff, Yoho & Kootenay National Parks. Dec 17, 2017 .

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