Vaucluse is a department in the southeastern French region of Provence-Alpes-Côte d'Azur. It had a population of 559,016 as of 2016. The department's prefecture is Avignon.
It is named after a spring, the Fontaine de Vaucluse, one of the largest karst springs in the world. The name Vaucluse itself derives from the Latin Vallis Clausa as the valley ends in a cliff face from which the spring emanates.
Wikipedia https://en.wikipedia.org/wiki/Vaucluse
Coordinates 43°56'57.297" N 4°48'21.244" E
