“Its 300 residents had already been evacuated earlier in May after part of the mountain behind the Birch Glacier began to crumble.”
Yep, there is a large debris field at the bottom of the mountain that is seen in the video BEFORE it gets hit by this avalanche or whatever they are calling it.
Yeah, I’ve been following this a bit, ever since the 1st (also fairly impressive) vid where part of the mountain shifted downward a bit. It was hoped there would be several more smaller slides, but, a (really) big chunk decided to let go all at once. There will be a new lake now, so, I guess the question is whether to work with what they’ve got, stabilize flow over / through the debris field, and build a resort on the lake, or, cut through the debris field and gradually restore normal flow of the river (a big project).