Northern San Juan
AvalancheMichael Chandler · Dec 5, 2018 · Northern San Juan
Weather
West ridge of Blair Mountain right above top of CR 20 at 11,500 feet Cloudy cold day evening
Snowpack
Very deep fresh snow from recent storm 3-4+ feet deep to the ground Blair Mountain West Ridge Scree Field with small tailings piles at 11,500 feet
Avalanche
One Remote triggered by Snowmobile Avalanche with 3-4 foot high crown wall to the ground about 100 feet wide and ran down hill for about 150 feet with max debris depth of about 6-8 feet deep. It fractured in large slabs with horizontal cracks at the top of slope and flowed fairly slowly. Avalanche occurred right at sunset Tuesday 12/4/18. Avalanche happened on the West ridge of Blair Mountain at Timber Line 50 ft above very top of CR 20 at 11,500 on a large scree field