http://swissbaync5d7ykaz7dh7v4qjrb4gmen5aj3bogxrcgbb43ij34bjuyd.onion/pdf/Books/Survival/Survival/shltrall.html
In this case, virtually
any protection from wind, rain & cold will be welcome. If movement down a slope seems risky, traversing even a short way along the
contour may bring you out of the wind. If no cave or crevice is available to
give shelter, make use of any hollow in the ground.