Montana State University Geography Dept.

Crown Profile from natural cornice-triggered avalanche in the Hourglass Couloir on 2/26. Avalanche fractured on 3 different layers eventually breaking at the ground. Each failure plane was very similar - wind-packed rounds above a weaker layer of facets.

Crown profile from HS-R4-D3-O avalanche near Flathead Pass. Estimated 1-2 days old at the time of finding.