Lake Pontchartrain

estuary located in southeastern Louisiana, United States

Lake Pontchartrain (pronounced /ˈpɒntʃətreɪn/ in English; Lac Pontchartrain, IPA [lak pɔ̃ʃaʀtʀɛ̃] in French) is a brackish lake in southeastern Louisiana. It is the second largest salt-water lake in the United States, after the Great Salt Lake in Utah, and the largest lake in Louisiana.

Lake Pontchartrain
Landsat image
Map
Coordinates30°12′22″N 90°06′08″W / 30.206055°N 90.102132°W / 30.206055; -90.102132
Typesalt-water lake
Basin countriesUnited States
Surface area630 sq mi (1630 km²)
SettlementsNew Orleans, Metairie, Kenner, Mandeville, Slidell, Madisonville, etc.

It has an area of 630 square miles (1630 square km) with an average depth of 12 to 14 feet (about 4 meters). Some shipping channels are kept deeper through dredging. It is roughly oval in shape, about 40 miles (64 km) wide and 24 miles (39 km) from south to north.

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