Lac de Coiselet, reservoir in France
Lac de Coiselet is a reservoir in the Ain region of the Jura, created in 1970 when a dam was built. The lake is surrounded by high cliffs and fed by two rivers, the Bienne and the Ain.
The lake came into being in 1970 following dam construction and served as a major infrastructure project for the region. Its creation allowed water storage and opened new opportunities for fishing and recreation.
The lake takes its name from Coisia, one of the Jura communes on its shore, alongside Condes and Chancia; Dortan and Samognat lie on the Ain side. An unsupervised beach next to a campsite on a peninsula in Chancia is used for bathing, and anglers fish the reservoir's waters.
Bathing is possible at an unsupervised beach in the commune of Chancia, beside a campsite set on a peninsula at the water's edge. Condes also has a campsite. The lake lies at the confluence of the Ain and Bienne, northwest of Oyonnax, and holds many fish for anglers.
The lake lies at the confluence of the Ain and the Bienne, and its 3.8 km² surface is overlooked by the Mont Molard de Nétru and the cliffs of Chancia. The Barrage de Coiselet, built in 1970, holds the water.
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