This photo barely tells the story of this massive landslide/avalanche on the lake. There's 5ft diameter boulders, trees, and tons of debris laying on the shattered ice pack of this lake. The outlet to the lake shows the scars of a 12ft wave of water and ice that slammed into shoreline trees knocking some down, breaking limbs on others. There was drift wood scattered up to 100ft up onto the shoreline near the outlet campsite. A bounty of firewood for me. The lower canyon was blown out due to the rush of water, making the upper Rattlesnake creek crossing very hazardous with all the unstable boulders.