Lake Borgne, Lagoon in southeastern Louisiana, United States
Lake Borgne is a shallow coastal lagoon in southeastern Louisiana that opens toward the Gulf of Mexico through waterways and marshland. The body of water is defined by its low-lying terrain and extensive wetland surroundings.
Early 18th-century maps show Lake Borgne as a true lake, largely separated from the Gulf of Mexico by a wide coastal marsh. Canalization of the Mississippi and natural erosion removed that barrier, turning it into a lagoon. In 1902 Mississippi argued before the U.S. Supreme Court that no such lake existed in 1812.
The lagoon serves as a working landscape where fishing remains part of the daily rhythm for many families in the region. Boats and fishing gear are common sights along the shores and waterways.
A flood barrier now protects nearby communities from storm surge during severe weather. Water conditions vary with seasons and weather, so it helps to check conditions before planning a visit.
A large restoration project is underway to rebuild lost marsh habitat using material dredged from the waterway. This effort reflects how communities are working to counter the region's ongoing land loss.
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