Lac de Chalain

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The Lac de Chalain (French pronunciation: [lak də ʃalɛ̃], 'Lake of Chalain') is a glacial lake in the Jura department of France. It lies wholly within the commune of Fontenu, near Marigny and Doucier, in the Bourgogne-Franche-Comté region. Pre-historic pile-dwelling settlements (c. 4000-750 BC) found at its western end—and at nearby Grand Lac de Clairvaux—have been classified as French historical monuments since 1911 and were added to the UNESCO World Heritage List in 2011.

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