The Technique of Travel : Page 140
Sit down and think, carefully plan a way out ofhis predicament.
Try to retrace his steps to the last familiar landmark, seek a good point of vantage, and reconstruct theproper route from there.
Failing in this, he should stay put, build a fire, signal for help, and prepare to bivouac.
Fire building.—To build a fire in the snow quickly, in stormy weather or at low temperatures, is sometimes a major problem. The fire may serve only as a convenience during a noonday stop, or it may be essential in case of accident. Where warmth is urgently necessary, however,
the ski mountaineer should remember his tent and sleeping bag, in which he can keep warm and dry, and his stove, on which he can prepare hot, stimulating drinks.