Each morning we rope up into four man teams. We have a rope connected to all our harnesses for safety reasons. When we are traveling across snow and glaciers there is always the danger of crevasses that could be 100’s of feet deep just covered by a thin layer of snow. If one of the members of the team were to fall through this thin layer of snow, the rest of us could jump to the ground throwing our ice axes in to prevent that person from hitting the bottom and seriously injuring themselves. This does not happen all the time, however it is a very serious risk that we are all well prepared for. Today we traveled across the kahiltna glacier about four miles where we buried some food and unneeded goods for the next 3 days to lighten our load for the following day. Kind of like hiking the mountain twice.