male back country skier climbing a steep couloir in deep snow during heavy snowfall in winter

active adventure alpine alps aski avalanche back backcountry beauty blue break breathe climbing cold couloir country danger deep during engadin engiadina extreme falling fresh grisons heavy landscape look male man mountain mountaineering mountainous mountains natural nature one outdoor outdoors plan powder rest sarsura silvretta ski skier skiing snow snowfall sport steep swiss switzerland the tour touring track vertical winter