Mac West Shoulder

Quick report

derek.trowell · Dec 28, 2025 · Glacier

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Quick report

Weather
cloudy, cold
Ride Type
convexSlopes, steepSlopes, openTrees, mellowSlopes
Riding Quality
amazing
Snow Conditions
powder, windAffected
Avalanche Conditions
avalancheConditionSlab

Good snow up NRC Gully / Macdonald West Shoulder. Dropped into an unsupported / cross-loaded feature which triggered a size 1-1.5. Good reminder to take the less consequential route whenever possible.

Avalanche

Run Length
120
Slab Width
15
Trigger Type
skier
Wind Exposure
crossLoadedSlope
Avalanche Size
1.5
Slab Thickness
25
Trigger Sub Type
accidental
Start Zone Aspect
SW
Vegetation Cover
openSlope
Start Zone Incline
35
Avalanche Character
stormSlab, windSlab
Number Of Avalanches
1
Start Zone Elevation
2090
Runout Zone Elevation
2020
Avalanche Observation
12hrsAgo
Start Zone Elevation Band
tln
Avalanche Occurrence Datetime
2025-12-28T20:05:00.000Z

Dropped into an unsupported area to traverse above a small cliff, triggered a size 1-1.5, looking back I should have known this feature was cross-loaded and taken a different path. Last person in a group of 4 to ride across this feature triggered it. No one was caught in the slide.