Lac de Guerledan is an artificial lake in the centre of Brittany and with a surface area of 4km is the largest artificial lake in Brittany. It was created to power the dam of Guerledan and construction took seven years from 1923 to 1930. The creation of lake encountered many technical, geological and financial difficulties not least because it cut through the Nantes-Brest canal and seventeen of the old locks were submerged in the Lake which is now a tourist attraction. Beginning in 1951 the Lake was regularly drained every ten years revealing a hidden landscape of locks and buildings but apparently modern technology has rendered this draining unnecessary.
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Photo taken in Caurel, France
Misplaced? Suggest new location