This slide was triggered by the Big Sky Ski Patrol on the north side of Lone Mountain (formerly Moonlight Basin). It broke about 3 feet deep on facets near the ground. This slide was triggered with explosives, and it is notable because it occurred on a slope that has no history of producing avalanches. Photo: Big Sky Ski Patrol
Forecast link: GNFAC Avalanche Advisory for Wed Dec 4, 2013