Marc Martinetti is a high mountain guide, and was one of the best climbers of his generation, opener of many routes in the Alps including the famous Pilier Martinetti at Mont Blanc du Tacul with Christian Mollier on August 23, 1960. He will be part of the expedition led by Lionel Terray for the first ascent of Mount Huntington (Alaska), they completed the summit on May 25, 1964.