very cold weather a small snow shelter can provide excellent insulation
from the cold. If your snow shelter is built correctly, you will be
surprised at how cozy it can actually be. To build an easy snow shelter
follow these guide lines:
Using some kind of digging tool, dig a narrow trench wide enough for
your body and a few feet deep.
2. Line the bottom of the trench with boughs.
3. Cover the top of the trench with a tarp or overlay branches and boughs