Avalanche: Mill Hollow 12/23/2010

Observer Name:

David Rosenberg

Observation Date:

12/23/2010

Occurrence Date:

12/23/2010

Occurrence Time:

2:00pm

Region:

Mill Hollow
Logan River
Logan

Location

41° 43' 19.8552" N, 111° 43' 51.5208" W

Avalanche Characteristics

Elevation:

9100'

Aspect:

North

Northeast

Slope Angle:

Unknown

Trigger:

Skier

Trigger: additional info:

Intentionally Triggered

Cornice Triggered

Avalanche Type:

Hard Slab

Depth (avg):

12"

Width:

70'

Width Range:

70' to

80'

Vertical:

Unknown

Vertical Range:

100' to

150'

General Comments

On Thursday at about 2 pm, we did intentionally trigger a wind/hard slab slide from the ridge between Logan Dry and Mill hollow just below (NW of) pt. 9182. Cut a shopping cart size section of the cornice, which, when it released, also propagated a slab. The slide ran about 75 feet wide and 75 ft down before breaking up in the trees. Up to 1' depth with the crown at 8" (on top of the cornice).

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