A very large (ca. 200 lb) rock was pulled off the top of No Glow this afternoon by a novice climber. I imagine it is the block discussed in this thread. It exploded at the GT Ledge and sent shrapnel from tiny to 50 lb pieces in a 100 foot spread. There were 4 of us at the base at the time. No one was seriously injured but one climbed needed on-site medical attention for a soft tissue leg injury and another climbed experienced a shoulder tweak as a result of the panicked evasive maneuvers. The big chunks that hit the ground would have killed anyone instantly had they been hit.