1912 saw the start of the Champsaur rail works, an old project for a line between Grenoble and Gap which was intended to pass through Champsaur. In service from 1932 onwards, the Mure to Corps section was an undoubted success. From Corps to Gap, the earthworks and engineering works were almost totally complete. However, the onset of the War, a lack of resources and the development of cars all brought the project to an end in 1941. Today, numerous structures along the route bear witness to this past endeavour.