This article is about a wetlands basin in Louisiana. For other uses of the term "Atchafalaya", see Atchafalaya (disambiguation).
A swamp in the Atchafalaya Basin
The Atchafalaya Basin, or Atchafalaya Swamp (/əˌtʃæfəˈlaɪə/; Louisiana French: Atchafalaya, [atʃafalaˈja]), is the largest wetland and swamp in the United States. Located in south central Louisiana, it is a combination of wetlands and river delta area where the Atchafalaya River and the Gulf of Mexico converge. The river stretches from near Simmesport in the north through parts of eight parishes to the Morgan City southern area.
The Atchafalaya is different among Louisiana basins because it has a growing delta system (see illustration) with wetlands that are almost stable.[1] The basin contains about 70% forest habitat and about 30% marsh and open water. It contains the largest contiguous block of forested wetlands remaining (about 35%) in the lower Mississippi River valley and the largest block of floodplain forest in the United States. Best known for its iconic cypress–tupelo swamps, at 260,000 acres (110,000 ha), this block of forest represents the largest remaining contiguous tract of coastal cypress in the United States.[2]
^"Coastal Louisiana Basins". lacoast.gov. Archived from the original on Dec 9, 2023. Retrieved 2024-03-07.
^Piazza, Bryan P (25 February 2014). The Atchafalaya River Basin: History and Ecology of an American Wetland. Texas A&M University Press. ISBN 978-1-62349-039-3.
The AtchafalayaBasin, or Atchafalaya Swamp (/əˌtʃæfəˈlaɪə/; Louisiana French: Atchafalaya, [atʃafalaˈja]), is the largest wetland and swamp in the United...
The AtchafalayaBasin Bridge, also known as the Louisiana Airborne Memorial Bridge, is a pair of parallel bridges in the U.S. state of Louisiana between...
river valley forms the AtchafalayaBasin and Atchafalaya Swamp located in southern Louisiana near the Gulf of Mexico. The Atchafalaya became a main distributary...
during major flood events by flooding the AtchafalayaBasin, including the Atchafalaya River and the Atchafalaya Swamp. The spillway and adjacent levees...
the main channel of the Mississippi through Louisiana's AtchafalayaBasin and down the Atchafalaya River to reach the Gulf of Mexico south of Morgan City...
as "Old River", between the Mississippi's current channel and the AtchafalayaBasin, a former channel of the Mississippi. The Old River Control Structure...
per second (3,500 m3/s) of water from the Mississippi River to the AtchafalayaBasin. This diversion was deemed necessary to protect levees and prevent...
Louisiana, U.S. Atchafalaya River, Louisiana, U.S. AtchafalayaBasin or Atchafalaya Swamp, wetlands surrounding the lower part of the Atchafalaya River, Louisiana...
The AtchafalayaBasin Mounds (16 SMY 10) (variously known as the Patterson Mounds, Patterson site, Moro Plantation Mounds and as the protohistoric village...
Louisiana, lies just east of the Atchafalaya River. In 1988 under the administration of Governor Foster the "AtchafalayaBasin Master Plan" was implemented...
becoming known as the "Master Plan." Louisiana portal Terrebonne BasinAtchafalayaBasin Coastal management Coastal Wetlands Planning, Protection and Restoration...
of their original land, where they have long occupied areas of the AtchafalayaBasin, "one of the richest inland estuaries on the continent." In 2011 they...
day-to-day activities of alligator hunters living in the swamps of the Atchafalaya River Basin who hunt American alligators for a living. Alligator season in...
of the AtchafalayaBasin about 30 miles (48 km) west of Baton Rouge, Louisiana and actually extends a little south of the I-10 AtchafalayaBasin Bridge...
Movie!. In 2021, he competed on Naked and Afraid XL again in the AtchafalayaBasin of Louisiana. During the season, Snyder sustained lacerations to his...
reconstruction of seven miles (11 km) of I-10 between I-49 (exit 103) and the AtchafalayaBasin. A center concrete barrier was constructed, the road was repaved,...
Rouge Parish whose characteristics helped define the culture, the AtchafalayaBasin Mounds in St. Mary Parish, the Fitzhugh Mounds in Madison Parish,...
Tensas-Madison area in northeast Louisiana and in the lower fringes of the AtchafalayaBasin. Today, black bears can be found in all of Louisiana, but according...
3. Redirecting sediment: The Atchafalaya River Basin is a river swamp that has an overabundance of sediment. This basin contains the largest tract of...
and nature writer on the Louisiana’s AtchafalayaBasin and Cajun culture. His works were focused on the Atchafalaya landscape, its flora and fauna, and...
sediments underlying the surface of the Mississippi River Delta and the AtchafalayaBasin of Louisiana. In one case, borrow pits dug in the natural levees of...
Tennessee River Almonaster Avenue Bridge, New Orleans AtchafalayaBasin Bridge, crosses the AtchafalayaBasin to connect Iberville Parish and St. Martin Parish;...
West Atchafalaya Floodway is a flood control structure of the Mississippi River and Tributaries Project located in the Lower AtchafalayaBasin in south-central...
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