A very large debris pile was found to have run over Source Lake and halfway up the knob on the other side. Suspect that the debris is a culmination of multiple avalanches originating on both Chair and Bryant Peak. Ran during the AR event, likely on 2/28 at some point.
3/6 Updated: Widely spanning crowns observed on S shoulder of Chair near the base of cliffs. Assuming there is a similar crown in Upper Chair Peak Basin.