Large Natural on Fox, Collapsing

From IG 12/3: Hey guys, just getting back from Cooke. Confirming more of what you saw, lots of large natural avalanches up high. Most notable was this massive slide on fox, looks to have broke 2-6’ deep and over 1000’ wide. Couldn’t quite see the toe from our tour but it looked to have run over 1000’ vertical. Never have seen one so large on Fox… we stuck on sub 25° terrain which was hard to move in. Lots of whumphing but not much (if any) cracking...