 Climbing with her husband Keith Boskoff, in 1997 Christine Boskoff became the first North American woman to reach the summit of Lhotse.That same year, the Boskoffs purchased the adventure travel firm Mountain Madness from the estate of Scott Fischer, a mountaineer who died climbing Mount Everest in 1996.Christine Boskoff continued to run Mountain Madness, still considered one of leading mountaineering schools and international guide services in America.