The
Arve
Valley (
La vallée de l'Arve) is an alpine valley located in the French
Haute-Savoie 
department. The namesake of the valley is the river at the bottom: the Arve. The valley as a whole makes up the majority of Faucigny, one of the Natural regions of France, and one of six that make up the Savoie region.
Geography
The valley came into being during the last ice age when the Alpine glaciers extended beyond Geneva.