Gallatin National Forest Avalanche Center

This avalanche was triggered by a groomer at 8:15 p.m. on 2/27. Info is here: https://www.mtavalanche.com/node/22269

Avalanche that broke on 2/14-2/15 (estimate based on report from 2/16/20). N-HS-R4-D3-O. Crown 3-5' deep. 50 feet wide. 1100' vertical.