Bobby Unser Imagine you are visiting one of our national forests when, without warning, you are caught in a blizzard.
All visibility is gone.
You have no idea which direction is east and which is west, which is north and which is south. You become hopelessly lost. There are no signs of civilization anywhere - no buildings, no roads, no telephone or power lines. You are completely alone. The temperature is so bitterly cold that you know the odds are against you surviving the night.