Date/Time: 12/22/2018 10:00:00

Path: Horse Creek Drainage Zone: 309
Elevation: 8946 Aspect: NE
Starting zone slope angle: 36-40
Type: Hard Slab
Relative Size: 1 Destructive Size: 1.5 Depth: 22
Trigger: Snowmobile (AM)
Lat: 42.935513 Lng: -110.586372

Observer Notes:A snowmobiler was in a steep terrain trap and triggered a small slab avalanche (app. 150 x 150 feet). He was pinned under the sled on his back. A partner was not able to assist. Other riders came by after an hour. They uncovered his face which was one foot under the snow, but he did not survive. This stiff wind slab failed on faceted snow that formed earlier in the season. The total snow depth in this concave terrain feature was only 2 to 3 feet deep. Our sincere condolences to all involved in this tragic incident.

1 Fatalities Involved.

Dustin Lapant Age: 31

Links to articles and reports

View more information

Horse Creek Accident Report

Event Photos

Click to view photos

Video links

View Video Report

Our partners
Friends of BT Avalanche Center
Bruce Hayse M.D.
Teton Gravity Research