page_title: Fontaine-de-Vaucluse
section_title: Hydrography
hierarchical_section_title: Fontaine-de-Vaucluse / Geography / Hydrography
context_page_description: Fontaine-de-Vaucluse is a commune in the Vaucluse department in the Provence-Alpes-Côte d'Azur region in southeastern France. The name Vaucluse comes from the Latin phrase vallis clausa or "closed valley".
context_section_description: The fountain, or spring, of Vaucluse, situated at the feet of a steep limestone cliff 230 metres high, is the biggest spring in France.  It is also the fifth largest in the world with an annual flow of 630 million cubic metres.
  The fountain of Vaucluse surges in March for about 5 weeks and then subsides.  The increased flow of water swells the Sorgue to flood.  The mechanism behind the surging remains somewhat of a mystery.
caption: The Sorgue
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