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Chockstone Forum - Crag & Route Beta

Crag & Route Beta

Area Location Sub Location Crag Links
All NSW (General) (General) (General)  

Topic Date User
Ice Conditions 2016: Buller, Blue Lake et al. 18-Oct-2016 At 9:14:26 AM TRADgic
Message
Yo Damo, gotta chime in here. The line under the cornice is a 'Crown Wall', as documented elsewhere by the various avalanche advisories. This face slid (as the debris below would clearly indicate) following the storm event that was I think late September. The right hand side or the face also has a clearly defined crown wall also. This 'schrund, as a result of the snowpack creating a fault where one half decides it's off to become glacier (or other subsidence beneath like depth hoar leading slow wet slide). The snowpack above decides it will stay as 'mountain'. I think in this instance the avalanche event has created a weekness that has later propogated a fissure 'to ground' and is slowly subsiding . The nett result is that the cornice above is the equivalent of 20 full cargo containers sitting teetering above a slope with no bridging support from the snowpack below. Effectively a now a cornice that is becoming a serac. Semantics? Do you agree? Just figure it's best not to play the objective danger down. You could be sunning yourself lakeside and get smudged by this puppy once the cohesion fails.

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