John Slemp sure has a tale to tell after he survived a 100-200 ft. fall into Mount St. Helens. His group had taken their sleds up to the west crater rim, he and his son, Jared, and a buddy parked their snowmobiles. Then Slemp and his son crawled on all fours to within 20 ft. of the edge of a snow cornice that overhung the crater. The cornice gave way causing John to fall and Jared to dangle from the edge.
Read the full story of their survival and how to avoid a similar situation here or
find more here.