Spent the night few yrs back. Were up at around 10,000, above tree line, -10F, & all the sudden wind came out of no where. Being it was so cold, instant white out. Couldn't see maybe 5 ft & was getting dark. Couldn't find the only draw out that wasn't a shear cliff. drove in what we thought was a straight line until we came across our tracks. Running low on gas, almost dark, evryone cold, we crept dwn to a tree line, drove in as far as we could & found a couple big trees that were dwn in a X. Dug it out between them, cut pine bows to line area for sitting, got fire going. It was a fierce storm & got dwn to -20F with 40 -45 mph winds. Took turns cutting logs w/little fold out saw. instantly warm you right up. We all made it out next day w/no frost bite & are all prepared if it should happen again. Been close many other times but this was extreme conditions & not that bad.