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Lac de Grand-Lieu
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Lac de Grand-Lieu (French: [lak də 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.
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Quick Facts Location, Coordinates ...
Lac de Grand-Lieu | |
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Location | Saint-Philbert-de-Grand-Lieu, Loire-Atlantique |
Coordinates | 47°05′N 1°40′W |
Type | Natural |
Primary inflows | Boulogne, Ognon |
Primary outflows | Acheneau |
Catchment area | 700 km2 (270 sq mi) |
Basin countries | France |
Surface area | 62.92 km2 (24.29 sq mi) Summer: 35 km2 (14 sq mi) |
Average depth | 1.6 m (5.2 ft) |
Max. depth | 4 m (13 ft) |
Surface elevation | 5 m (16 ft) |
Islands | 3 |
Designated | 1 February 1995 |
Reference no. | 714[1] |
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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.