There's a great, 1 hour NFB video (part of
Canada Carries On series) done about the 1946 Exercise MUSK-OX here:
https://vimeo.com/167910734
I found it interesting how they snagged the gliders and also, how after slogging all around the artic, they had to finish the last few hundred miles by hauling the snowmobiles by train as the dust from the Alaska Highway was destroying the engines. Shades of tanks in Iraq!
Attached is a commemorative patch made by Crest Craft for the event too.