A few years ago, my brother Ted and I traveled across Great Bear Lake in the Northwest Territories on snowmobiles en route to Uluhoktok, a village on the Arctic Circle. We drove through subzero temps and wicked winds. Ted and I would camp in tents and cabins, but before the trip I made sure I learned how to build a survival shelter if the situation were to call for it. Something with insulation, that’s easy to make and strong against the wind. Something like a quinzhee. Which looks something like this.