The Fontaine de Vaucluse
The village is dominated by a gigantic 230 to 240 metres Cliff where the fountain has dug its resurgence. It is a siphon of 308 meters, including 223 under the level of the forested. This huge source4 gave its name to all "vauclusian fountains" in the world.
The first explorations of the cave began in 1878, and the lowest point, either - 308 m from the surface of the cave, was reached in 1985 by a robot of the Speleological Society of Fontaine de Vaucluse.
La Fontaine de Vaucluse, the biggest source of France, is here called 'the fountain'. It gives birth to the Sorgue that splits into several arms comtadine plain and flows in the direction of Saumane then l'Isle-sur-la-Sorgue became a tributary of the Ouvèze at Bédarrides and Sorgues and the Rhône at Avignon.
She is ranked fifth in the world with an annual water flow of 630 million m3 (20.0 m3/s). The flow at the end of Summer 2009 came down to 6 m³/s (79 cm) 5, the water outlet becomes spectacular during periods of flooding (winter and spring with a flow rate that can reach 90 m3/s and in its strongest flows, 170 m3/s 6)
The resurgence of Fontaine de Vaucluse is actually the most important natural output of a 'container' (galleries and cavities of the massif of the Vaucluse Mountains massif of the baronies and Mont Ventoux to the Montagne de Lure drains rainwater and melting snow) on a total area of 1,100 km2.