Natural avalanche on Gothic east face

Location: Crested Butte Area
Date of Observation: 12/29/2016
Name: Frank Stern
Subject: Natural avalanche on Gothic east face
Aspect: East
Elevation: 12,000

Avalanches: Natural release on east face of Gothic at 12,000′. Appeared to start below cliff in sun, ran over cliff approximately 200′ airborne. Snow continued to run for about 10 minutes. N-U-R2-D2+.
Weather: Sunny, 25 F
Snowpack: