Mont Lachaux is a World Cup women's speed ski course in Crans-Montana, Switzerland, opened in 1987.
They hosted the Alpine World Ski Championships in 1987, with Swiss skiers Pirmin Zurbriggen, Maria Walliser, Erika Hess and Peter Müller who took 8 of 10 available gold medals, dominating in front of the home crowd. Other events were held on another two nearby ski courses, "Nationale" and "Chetzeron".
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