Timely topic.
In about 3 hours, we will be heading into northern Canada and will only be able to take very limited kit due to transportation restrictions. In the very unlikely event that a major and regional/national debilitating event should occur, we would stay there and not try to make our way home any time soon as the weather, terrain and shear distance would make such an attempt foolish.
At least where we would be staying up north is a familiar environment and some family and friends live there. Most of these people have spent their entire lives living in some of the most inhospitable winter conditions in NA and are well prepared as compared to people in a large metro locale where we live right now.
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Earth and sky, woods and fields, lakes and rivers, the mountain and the sea, are excellent schoolmasters, and teach some of us more than we can ever learn from books.
John Lubbock