Edward Randle "Ed" LaChapelle (May 31, 1926 – February 1, 2007) was an American avalanche researcher, glaciologist, mountaineer, skier, author, and professor.
Edward Randle "Ed" LaChapelle (May 31, 1926 – February 1, 2007) was an American scientist studying winter conditions, a climber of high-altitude mountains, a competitor in winter sports, a writer and teacher.