** FILE ** In this March 22, 2002 file picture, mountaineer Christine Boskoff pauses during a training session at Snoqualmie Pass, Wash. There is only a "slim" chance that two American climbers missing since November are still alive in a region of 20,000-foot peaks in China's southwest, an official said Tuesday, Dec. 19, 2006. Boskoff, and Charlie Fowler, a well-known climber, guide and photographer, were reported missing after they failed to return to the United States on Dec. 4. (AP Photo/Elaine Thompson)