A quality shelter is crucial in a cold environment otherwise hypothermia may get you before hunger, disease, or any wild predators. Building a snow cave is no easy task however, and takes several man hours with the assistance of proper tools to construct. The result however, will be one of the most comfortable and warm shelters you can build in snow. Snow caves work well because snow is a natural insulation. The inside of a snow cave is warmed by body heat and protects against cold air blowing from any side....