Into Thin Air What is survival dependent on in the death zone? Chapter 13 Asked by lisa b #272673 on 10/6/2012 2:20 PM Last updated by Aslan on 10/6/2012 3:12 PM
Time was of the essence. They only had 5 to 6 hours of oxygen for each person so they had to be up and down, of the death zone, within that time.