Date and Time of Avalanche Avalanche Type Trigger Sizesort ascending Starting Elevation Aspect Number of avalanches
03/18/2018 - 01:00
Kupunkamint Mountain
Soft Slab Natural D3 , R3 8400 feet South 1
04/06/2020 - 14:30
Forecaster Observation - Flathead Range
Cornice Natural D3 Above 6,500 ft East 1
12/20/2019 - 13:30
Upper Holland Lake
Hard Slab Natural
Cornice Fall Triggered
D3 Above 6,500 ft 2
02/04/2018 - 23:00
Essex & Sheep Creek - Flathead Range
Hard Slab Natural D3 , R3 Above 6,500 ft East 1
02/01/2020 - 01:00
Forecaster Observation - Flathead Range
Unknown Natural D3 Between 5,000 and 6,500 ft Northeast 2
03/22/2019 - 15:15
Forecaster Observation - Flathead Range
Wet Slab Natural D3 , R4 Between 5,000 and 6,500 ft West 1
03/22/2019 - 17:30
Glacier Park Traverse
Wet Slab D3 1
12/20/2019 - 05:15
BNSF Avalanche Safety - JFS Canyon
Hard Slab Natural
Cornice Fall Triggered
D3 , R3 7300 feet North 1
03/20/2019 - 14:15
JFS Canyon
Wet Slab Natural D3 Between 5,000 and 6,500 ft 1
01/29/2018 - 13:00
Jewel Basin, Swan Range
Hard Slab Natural
Cornice Fall Triggered
D3 , R3 Above 6,500 ft East 1
04/01/2020 - 02:45
Forecaster Observation - Flathead Range
Hard Slab Natural D3 , R3 Above 6,500 ft Northeast 1
02/08/2018 - 10:30
Forecaster Observation- Rescue Creek, Flathead Range
Hard Slab Natural D3 Between 5,000 and 6,500 ft Northeast 1
03/22/2019 - 15:00
Forecaster Observation - Flathead Range
Wet Slab Natural D3 , R3 Between 5,000 and 6,500 ft West 1
12/22/2020 - 02:00
Flathead Range
Hard Slab Natural D3 , R3 Above 6,500 ft Northeast 3
02/24/2021 - 12:00
Forecaster Observations - John F. Stevens Canyon
Hard Slab Artificial (Explosives)
Intentionally Triggered
D3 , R3 7000 East 1
Going to the Sun Road Glide Natural D2.5 , R3 Above 6,500 ft Northeast 1
12/19/2017 - 21:45
Forecaster Observation - Spider Bowl, Swan Range
Soft Slab Natural D2.5 , unknown Above 6,500 ft Northwest 1
01/08/2020 - 05:30
BNSF Avalanche Safety - JFS Canyon
Hard Slab Natural D2.5 , R3 7200 South 1
03/21/2019 - 19:15
Forecaster Observation - Southern Swan Range
Wet Loose Natural D2.5 , R3 Below 5,000 ft South 1
11/27/2020 - 12:00
Mount Brown - GNP
Soft Slab Natural D2.5 , R3 6700 Northwest 1

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