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Observer Name: 
Trenbeath
Observation Date: 
Sunday, January 29, 2017
Occurrence Date: 
Sunday, January 22, 2017
Region: 
Upper Horse Creek
Location Name or Route: 
Old Reliable
Elevation: 
11500
Aspect: 
Northeast
Slope Angle: 
40
Trigger: 
Natural
Avalanche Type: 
Hard Slab
Avalanche Problem: 
Persistent Slab
Weak Layer: 
Facets
Depth: 
3'
Width: 
1/4 mile
Vertical: 
1250
Comments: 

Typical large avalanche for Horse Creek with heavy snowfall and strong SW winds. Mountains received 40" of snow and 3.5 - 4" of water during the storm cycle of Jan 20-23. Winds averaged 30-40 mph with gusts to 70. Old Reliable!

Coordinates: 
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