Two years ago today, in a steep valley in a tributary of #ButeInlet, #BritishColumbia, a huge #rockavalanche (#landslide) (18.6 ± 0.34 million m3) descended about 1000m to crash onto a glacier and into #ElliotLake. https://www.nationalobserver.com/2020/12/15/news/landslide-bute-inlet-wildlife-habitat-marine-traffic