The first half of the video shows an avalanche down the Angel Glacier and a few human figures standing underneath the glacier for scale comparison. The second half shows a bigger avalanche rumbling down the cliff to Cavell Glacier. The third glacier, Ghost Glacier, no longer exists since 2012.
Source: http://www.followpanda.com/angel-glacier-jasper-national-park-of-canada.html
Flickr: http://flickr.com/photos/followpanda
Twitter: http://twitter.com/whatzcool
