The Diois Mountains (French: MassifduDiois) are a massif of the French Prealps located in the department of Drôme and in the extreme south of the department
Royans, Gervanne, Diois, and Trièves. The massif is sometimes called the "fortress". The movement of people tends to be between the massif and the surrounding
the French Alps are entirely in France, others, such as the Mont Blanc massif, are shared with Switzerland and Italy. At 4,808 metres (15,774 ft), Mont
climate is influenced by the mistral wind, which brings colder air from the Massif Central. Northern Rhône is therefore cooler than southern Rhône, which means