A solo skier entered the shaded, northeast facing slope (arrow) and triggered the slide (circle). It failed 2-4" deep on a layer of facets that formed at the surface before the last storm. Even a thin slab measuring a few inches thick can propagate a fracture. The slope was at 7500' in the northern Bridger Range north of Ross Pass. It broke 50-75 feet wide and ran approx. 300' downhill. Photo: Anonymous