Great lakes of Champagne

This area is located north of Troyes and is famous for a series of large lakes that are used to regulate the amount of water received by the Seine river from its tributaries.
Lac du Der Chantecoq

 Lac du Der Chantecoq

The lac du Der Chantecoq (simply referred to, as lake of the Der) is the largest artificial lake in all Europe. It was built in the 1970s in an area where there were forests and marshlands. Three...