Collapse and "Whumph" in Beehive

From e-mail: "...in bhive today, as I rolled into a W facing gully  at around 9800ft I got a good whumph, I noticed a 25ft wide crack probably about 8 inches deep, it did not run just fractured.  I checked it out seemed like it broke on an older slab sitting on that facet layer from early December." Photo: T. Grande