<Tr> <Th> Age of rock </Th> <Td> Tertiary </Td> </Tr> <Tr> <Th> Type of rock </Th> <Td> Bündner schist, flysch and molasse </Td> </Tr> <P> The French Alps are the portions of the Alps mountain range that stand within France, located in the Rhône - Alpes and Provence - Alpes - Côte d'Azur regions . While some of the ranges of the French Alps are entirely in France, others, such as the Mont Blanc massif, are shared with Switzerland and / or Italy . </P> <P> At 4,808 metres (15,774 ft), Mont Blanc (Italian: Monte Bianco), on the French - Italian border, is the highest mountain in the Alps, and the highest Western European mountain . </P>

Where are the french alps on a map