We triggered this avalanche remotely from about 50 feet above the crown up on the ridge. The crown was 1-2' deep, 100' wide, and ran between 200 and 300 vertical feet through trees and cliffs. Another slide failed sympathetically at the same time, 100' down the ridgeline. The slides failed on a 40 cm thick layer of depth hoar, which composed half of the snowpack. Photo: GNFAC