From obs: "Skier triggered a 1.5' slide to his right while making a turn near a cliff band. The slide did not intersect with the skier's path. We did a ECT before choosing our line and were not able to get the soft slab, or anything else to propagate, but clearly, the slab is ready to go as it slid on rocks. We both skied out without incident."
Avalanche Details: Skier Triggered Avalanche Mount Blackmore - East FaceNorthern Gallatin, 2020-12-28