Slide occurred on the rider's right side cliff line of Old Reliable and extending all the way to the cliff line of Stupid Chute. Poor picture due to flat light and snow. Slide was not connected and more pockety. Average depth 6", Max depth 12". Weak layer Light Density new snow from the initial part of the storm. There was a slight density inversion due to the significant amount of Graupel that fell after the initial half inch of snow, and the new snow/slab consisted of mixed forms with the Grauple. Slab density was 4 finger with the weak layer fist, and there appeared to have Graupel Pooling and crossloading from the WSW Winds as a contributing factor to the slab cohesiveness. Cracking was oberved in several other steep locations where the wind was also a contributing factor.

Forecaster comments: Talking to the reporting parties it sounds like this was two separate avalanches with the Old Reliable natural being approximately an hour before the human triggered Stupid Chute slide. With flat light it may have have been difficult for the second party to see the earlier slide.