This marked photo shows a class 3 avalanche I triggered on Mount Black Prince, March 1, 2006. The yellow line delineates the propagation, approximately 500 meters wide. The red dashes show our first ascent and safest ski route down the ridge line. The red line shows our second ascent with the anticipation of dropping into the north bowl. The green dash is the whomph spot, the trigger. The yellow dashes represent a fracture line that did not fail. The green line shows our exit after 10 minutes of analyzing our options and position. Kananaskis Country