puits (1) sport (1) itinéraire (1) réduction des risques (1) risque (1) escalade (1) pente (1) glacier (1) accident (1) taux (1) Acquisition (1) Death (1) Year (1) Water (1) Summer (1) Risk (1) Mountaineers (1) Mountaineering (1) Face (1) Death (1) Average (1) Autumn (1) Alps (1) Number (1) mort (1) mort violente (1)