Bison triggered avalanche?

 From an email:
"Upper Elk Creek, E. aspect, 8,200 ft
Debris looked pretty fresh, Who knows, but could have been triggered either directly or remotely by bison. The disturbance to lookers left (at bench) is due to bison - they are not cryptic animals!" Photo: J. Logan
Advisory Year
Out of Advisory Area, 2019-12-19