Located in the S. Madison near Beaver Creek, this avalanche was triggered by a cornice drop. It broke about 150 feet wide, up to 5 feet deep (averaged 2-3 feet). The cornices pulled back onto shallower angeled terrain, a dangerous but common occurrence with cornices. The avalanche released all the windblown snow on the leeward slide and funneled it down a steep, narrow gully; a likely unsurvivable ride. Photo: GNFAC