Copper Crown Lines

Quick report

colincarveth · Jan 26, 2024 · North Columbia

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Observation photo 1

Quick report

Weather
cloudy, warm
Ride Type
mellowSlopes
Stayed Away
alpineSlopes, convexSlopes, steepSlopes
Riding Quality
ok
Snow Conditions
heavy
Avalanche Conditions
avalancheConditionSlab, avalancheConditionSound

Went for a walk up Copper Crown to the cut blocks. Significant settlement in the upper snowpack from previous warm temps has created a 30-35cm slab (F at the surface to 4F+ at the bottom of the slab) above a layer of Facets/surface hoar from late December I'm guessing (FC Sz. 6, SH Sz. 4). We triggered several Sr Sz. 1 avalanches below the road. As well we toe triggered multiple whumpfs causing wide spread settlements above the road. Kept things quite mellow (<25 degree slopes). Dug a pit at the top of one of the cut blocks at 1775M (HS 87, ECTP 3 down 30). Still managed to get 3 schnoodly laps in the low angle areas before calling it a day.

Avalanche

Run Length
50
Trigger Type
skier
Avalanche Size
1
Trigger Sub Type
remote
Start Zone Aspect
N
Trigger Distance
3
Vegetation Cover
openSlope
Avalanche Character
persistentSlab
Number Of Avalanches
2-5
Avalanche Observation
12hrsAgo
Weak Layer Crystal Type
facets, surfaceHoar
Start Zone Elevation Band
btl
Avalanche Occurrence Datetime
2024-01-26T17:00:00.000Z

Surprising propagation distance. But terrain features benched out fairly rapidly.