Little Cottonwood Canyon was closed all day yesterday and between 1630 and 1745 traffic was allowed to proceed up and downhill. Upon exiting LCC, Natural activity was observed from the Y Couloir down as far as the Scuffy Band. The areas around the Scuffy Band appeared to be Wet Slab activity. It is presumed that the activity coming from higher up in the starting zones of the Y and Y-Not were Storm Slab with contributing factors of excessive Wind Loading. Widespread Natural activity. Tried to take pictures while driving and the only one that was any good was the shot of the Scuffy Band.