Fontaine de Vaucluse
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Fontaine de Vaucluse

by Cédric Rebolho, Irstea, Antony, France

The "Fontaine de Vaucluse", in France, is the source of the Sorgue River. It is the biggest spring of the country, and it is ranked fifth in the world. The water comes from a karstic cave of over 300 meters depth which feeds the river when overflowing. But the whole system is incredibly more complex and is still a good research subject for scientists.