Quart is one of the most wide Commune of the region. The Roman origin of the name makes reference to a milestone which indicates that the chief town Aosta is four miles far away. Quart is the most populated Commune of Comunità Montana Mont Emilius and it covers a total area of 62 km². There are many villages in the territory and an asphalt road going to 1500 m connects them. The name has Roman origin and it makes reference to a milestone which indicates that the chief town Aosta is four miles far away.

The Monastery Mater Misericordiae is situated in the village of Villair, which is dominated by the castle of Quart, while in Vollein Neolithic tombs have been discovered. The name of the famous cheese Fontina may derive from the mountain pasture “l’Alpe Fontin”, situated in Quart, where the dairy activity is thriving. Also the agricultural economy is important.