"Accidents in North American Mountaineering" is an annual publication available from the American Alpine Club :
http://www.americanalpineclub.org/knowledge/publications.asp
The USFS also posts accident report summaries for climbers on Shasta here :
http://www.shastaavalanche.org
You may also pick up details of other climbing-related accidents as they occur by reading the forums on climbing websites : CascadeClimbers, Summitpost, and mt-whitney are a few, but there are many others.
