From the heights of Montgenèvre, close to the Italian border, to the wide expanses of the Plain of Avignon, the Durance River Valley stretches from northeast to southwest for some 350 kilometres.
An inroad of civilization in Roman times, it is now an essential link between the Alpine and Mediterranean parts of the Provence region.
The Durance River Valley is not an official administrative division. It is a "territory" however, that is united by history, geography, economy and culture.
The creation of CEA-Cadarache, in 1959, largely contributed to transforming the Valley's economy, which was then essentially rural.
Fifty years later, both the French administration and the local governments in Gap, Sisteron, Manosque and all the way down to Aix and Cavaillon, expect that ITER's impact will be no less decisive.