Vercors Massif
The Vercors Massif is a range in France consisting of rugged plateaux and mountains straddling the départements of Isère and Drôme in the French Prealps. It lies west of the Dauphiné Alps, from which it is separated by the rivers Drac and Isère. The cliffs at the massif's eastern limit face the city of Grenoble.
Background
Over time, various features of the complex geography have been recognised including, the Quatre Montagnes (four mountains), the Coulmes (gorges), the Vercors Drômois (Drome Vercors), the Hauts-Plateaux (high plateau) and, in the foothills, Royans, Gervanne, Diois, and Trièves.
The massif is sometimes called the fortress. The movement of people tends to be between the massif and the surrounding plains rather than between the various parts of the massif itself.
Until the mid twentieth century, the name, Vercors was used to describe only the township of La Chapelle-en-Vercors (with Royans), and the northern area around Lans-en-Vercors, Villard-de-Lans, Autrans, and Méaudre (with Grenoble) and was known as the Four Mountains area.