This avalanche was triggered by explosives by the Moonlight Basin Ski Patrol; however, this slope was heavily wind loaded and could have easily been triggered by a skier or rider. The snowpack is thin and weak with very large facets sitting under a fresh wind slab. This is a classic recipe for an avalanche. See a snowpit from the adjacent slope at: http://bit.ly/tL6j78 Also, see a video: http://bit.ly/vyZgut Photo: GNFAC