10webCBAC Observations
Date of Observation: 04/30/2023
Name: Insta Gram
Zone: Northwest Mountains
Route Description: Viewed from Ruby Peak.
Observed avalanche activity: Yes
Avalanches: Large slab avalanche off Mt Owen, with debris to Green Lake. Appeared to be cornice triggered.
Location: Lake Irwin (Robinson Basin, Owen, Ruby)
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: E
Trigger: Cornice fall
Trigger modifier:
Type: Unknown
Failure Plane: Old snow
Relative Size: R2 small
Destructive Size: D2.5
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
# of people caught:
# of partial burials:
# of full burials:
Additional comments: Owen
