The department of Vaucluse been a member of the region Provence-Alpes-Côte d’Azur (PACA). He is bordering departments of Gard on the West, of Ardèche in the Northwest, of her Drôme in the North, Alpes-de-Haute-Provence in the East, of Var and the Bouches-du-Rhône in the South. A part of the North, the canton of Valréas , is completely enclosed in the Drôme. The relief of the department of Vaucluse presents an alternation of mountains ( laces of Montmirail , the massif of Luberon , The mounts of Vaucluse), of trays and plains strewed with hills. The mount Ventoux or the " Giant of Provence " with its 1 912 meters in heights is the peak of Vaucluse. Streams cut in the calcareous rocks of the varied landscapes such fill them with Nesque or coomb of Lourmarin.