This cornice triggered avalanche was on a NE facing slope at 9700'. It broke 300' wide, 3-6' deep and 150' vertical. It likely broke on 1/15 or 1/16/2020. Photo: GNFAC Location Lulu Pass Advisory Year 19-20 Avalanche Details: Natural avalanche north of Lulu Pass, Cooke CityForecast link: GNFAC Avalanche Forecast for Thu Jan 23, 2020Cooke City, 2020-01-20Access other image sizes:Very Large 1200pxLarge 480pxMedium 220pxSmall 150pxOriginal