(FILES) This file photo taken on July 12, 2012 shows a rescue crew of the Securite Civile (emergency services) flying over the Mont Blanc massif in an helicopter in Chamonix, in the French Alps, to the Mont Maudit, a mountain in the Mont Blanc Massif. A mountain guide and his two German clients died on August 17, 2016, after being swept away by an avalanche in the Mont Blanc Massif, the prefecture of the Haute-Savoie department said on August 18, 2016. The 50-year-old guide and his clients, a 32-year-old Slovak and a 33-year Anglo-Polish, were victims of a serac fall at the Mont Maudit, a summit of the Mont Blanc rising to 4,465 meters of altitude. / AFP PHOTO / JEAN-PIERRE CLATOT