From Wikipedia, the free encyclopedia Bill Briggs is the director of the Great American Ski School at Snow King Mountain in Jackson, Wyoming in the United States. Briggs, born in Maine, is notable as the first to ski the Grand Teton on June 15, 1971 and as a result is said to be the father of extreme skiing in North America. His route required a free-hanging rappel down a 165-foot (50 m) cliff face, which he completed with his skis on. He has also made first descents of other mountains in the Teton Range, includi