Lake Der-Chantecoq

Lake Der-Chantecoq Lac du Der-Chantecoq
Lake Der-Chantecoq Lac du Der-Chantecoq
Location	Champagne-Ardenne
Coordinates	48°34′57″N 4°45′33″E / 48.58250°N 4.75917°E / 48.58250; 4.75917
Type	artificial lake
Primary inflows	Marne
Primary outflows	Marne
Catchment area	2,900 km2 (1,100 sq mi)
Basin countries	France
Surface area	48 km2 (19 sq mi)
Max. depth	15 m (49 ft)
Water volume	350 hm3 (280,000 acre⋅ft)
Settlements	Sainte-Marie-du-Lac-Nuisement, Giffaumont-Champaubert

Lake Der-Chantecoq (French: Lac du Der-Chantecoq, pronounced [lak dy dɛʁ ʃɑ̃tkɔk]) is situated close to the commune of Saint-Dizier in the departments of Marne and Haute-Marne. It is the largest artificial lake in France,^[1] covering 48 km² (19 sq mi) with 350 million m³ of water. The lake is named after the Der plain, in which it is located, and the submerged village Chantecoq.

The lake is fed by a 12 km long canal that branches off the river Marne in Saint-Dizier. The outflow of the lake is a canal that joins the Marne in Arrigny, 20 km downstream of Saint-Dizier. The lake is located in the communes (clockwise starting from the north) Sainte-Marie-du-Lac-Nuisement, Éclaron-Braucourt-Sainte-Livière, Giffaumont-Champaubert, Arrigny, Larzicourt and Écollemont.