RAPPEL ERROR - NO BACK-UP BELAY AND NO KNOT ON ROPE END
Colorado, Boulder Canyon
On July 6, a female (31) fell approximately 15 feet when she rappelled off the end of her rope while climbing in Boulder Canyon. She injured her lower leg, and possibly her back, and had to be transported across Boulder Creek and taken to Boulder Community Hospital.
It is common practice to tie a blocking knot on the free end of the rope as a rappel safeguard. (Source: www.dailycamera.com/news)