Lac de Grand-Lieu

Lac de Grand-Lieu
Lac de Grand-Lieu is located in Loire-Atlantique
Lac de Grand-Lieu
Lac de Grand-Lieu
LocationSaint-Philbert-de-Grand-Lieu, Loire-Atlantique
Coordinates47°05′N 1°40′W / 47.083°N 1.667°W / 47.083; -1.667
TypeNatural
Primary inflowsBoulogne, Ognon
Primary outflowsAcheneau
Catchment area700 km2 (270 sq mi)
Basin countriesFrance
Surface area62.92 km2 (24.29 sq mi)
Summer: 35 km2 (14 sq mi)
Average depth1.6 m (5.2 ft)
Max. depth4 m (13 ft)
Surface elevation5 m (16 ft)
Islands3
Designated1 February 1995
Reference no.714[1]

Lac de Grand-Lieu (French: [lak gʁɑ̃.ljø]) is a lake located to the southwest of Nantes, in the Loire-Atlantique, France, and almost entirely in Saint-Philbert-de-Grand-Lieu. At an elevation of 5 m (16 ft), its surface area is 62.92 km2 (24.29 sq mi), making it the largest lake in France in winter, but second after Lac du Bourget in summer.

The lake is classified as a Local Nature Reserve, and use of boats on the lake are prohibited for all but a small number of licensed professional fishermen.

  1. ^ "Lac de Grand-Lieu". Ramsar Sites Information Service. Retrieved 25 April 2018.