Because of its environment and geography, the territory of the Community of Communes des Vallées de Thônes (CCVT) presents important natural risk factors. For several years, the territory has been affected by natural phenomena or exceptional weather conditions (floods, sludge flows, blockfalls, avalanches, etc.). In this respect, the CCVT wishes, in conjunction with its member municipalities, to develop a policy for the prevention of natural hazards, taking account of risk in spatial planning, prevention, solidarity, recognition of the specificities of the territory and integrated approaches.