edgepedia

Wetlands and swamps of the Americas

24 articles

Charles M. Russell Wetland Management District

The Charles M. Russell Wetland Management District is a U.S. Fish and Wildlife Service unit managing over 30,000 acres of wetland and grassland habitat across central and south-central Montana.

Chase Lake Wetland Management District

Chase Lake Wetland Management District is a U.S. Fish and Wildlife Service unit in Stutsman and Wells counties, North Dakota, part of the Arrowwood Refuge Complex, protecting Prairie Pothole wetlands and grasslands via 136 waterfowl production areas and over 95,000 easement acres.

Complejo Cenagoso de Zapatosa

Complejo Cenagoso de Zapatosa: Colombia's largest continental freshwater wetland, about 1,900 interconnected ciénagas in Cesar and Magdalena departments; Ramsar site (2018) and DRMI (2019), connecting the Magdalena and Cesar rivers.

Complejo de Humedales Cuyabeno Lagartococha Yasuní

Complejo de Humedales Cuyabeno Lagartococha Yasuní, Ramsar site no. 2332, Ecuador's largest Ramsar wetland (773,668 ha), designated 24 August 2017, connecting Cuyabeno Wildlife Reserve and Yasuní National Park in the Amazonian Sucumbíos and Orellana provinces.

Complejo de Humedales de la Estrella Fluvial Inírida (EFI)

Estrella Fluvial Inírida (EFI), Colombia's 6th Ramsar site (No. 2217), a 250,158-ha wetland complex in Guainía where the Inírida, Guaviare, Atabapo, and Ventuari rivers form the Orinoco headwaters; designated by Decreto 1275 of 8 July 2014.

Complejo de Humedales de Matusagaratí

Complejo de Humedales de Matusagaratí, Ramsar site 2566 in Darién, Panama: 64,750-hectare wetland designated 28 June 2024, Panama's sixth Ramsar site, its largest wetland, with 259 bird and 51 fish species.

Complejo Lagunar Bahía Guásimas - Estero Lobos

Complejo Lagunar Bahía Guásimas-Estero Lobos (Ramsar site 1790) is a 135,198-hectare coastal wetland complex in Sonora, Mexico, designated 2 February 2008, with mangroves, major wintering waterbird and brant populations, and Yaqui territory.

Everglades

The Everglades, the subtropical "River of Grass" wetland of southern Florida, once covered nearly 11,000 square miles; about half remains, and the 2000 Comprehensive Everglades Restoration Plan, now projected above $23 billion, seeks to restore its water flows.

Grand Kankakee Marsh

Grand Kankakee Marsh, the "Everglades of the North," was a vast Kankakee River wetland in Indiana and Illinois, over 500,000 acres, drained for farmland from 1869 to the 1920s; only about 13 percent of the basin's wetlands remain.

Great Dismal Swamp

The Great Dismal Swamp is a 113,000-acre forested peatland refuge in southeastern Virginia and northeastern North Carolina, the largest remnant of a once million-acre wetland, drained by 150 miles of ditches, home to Lake Drummond and historic maroon communities, now being rewetted through 64 water-control structures.

Humedales del Delta del Río Colorado

Humedales del Delta del Río Colorado: two Ramsar wetland sites (814, 1996, 250,000 ha; 1822, 2008, 127,614 ha) in Baja California and Sonora, Mexico, desert wetlands on the Pacific Flyway fed by canal seepage and irrigation return flows.

Laguna de Llancanelo

Laguna de Llancanelo, Ramsar site 759 in Malargüe, Mendoza, Argentina, is an endorheic saline wetland designated in 1995 and extended to 91,365 ha in 2020, famed for over 100,000 waterbirds and Chilean flamingos.

Laguna de Tamiahua

Laguna de Tamiahua, a shallow coastal lagoon in northern Veracruz, Mexico; Ramsar site 1596 (2005), 88,000 ha, third largest coastal lagoon in Mexico, with major mangrove forests, oyster fisheries, and protected turtles, fish, and seahorses.

Marismas Nacionales

Marismas Nacionales: Mexican Pacific wetland complex in Sinaloa and Nayarit; Ramsar site 732 (1995, 200,000 ha) and Nayarit Biosphere Reserve (2010); seven rivers, vast mangroves, and hundreds of thousands of migratory birds.

Marsh Island

Marsh Island, Louisiana: a ~71,000-acre brackish marsh island in Iberia Parish between Vermilion Bay and the Gulf, donated by Margaret Sage in 1920 and managed by LDWF as a wildlife refuge.

Medicine Lake Wetland Management District

Medicine Lake Wetland Management District, officially the Northeast Montana Wetland Management District, is a U.S. Fish and Wildlife Service unit protecting waterfowl habitat in northeastern Montana.

Okefenokee Swamp

Okefenokee Swamp: a nearly 700-square-mile blackwater peatland in southeast Georgia, headwaters of the Suwannee and St. Marys rivers, a National Wildlife Refuge since 1937 and a UNESCO World Heritage site since 2026.

Rainwater Basin Wetland Management District

The Rainwater Basin Wetland Management District, formerly Hastings Wetland Management District, is a U.S. Fish and Wildlife Service unit protecting playa wetlands in south-central Nebraska.

Sistema de Humedales de la Zona Sur de Honduras

Sistema de Humedales de la Zona Sur de Honduras, Ramsar site no. 1000: seven coastal wetland areas on the Golfo de Fonseca (Choluteca and Valle), designated 10 July 1999, 69,711 ha extended to 75,031.13 ha, mangrove ecosystem threatened by shrimp aquaculture.

Sistema Hidrológico de Soncor del Salar de Atacama

Sistema Hidrológico de Soncor del Salar de Atacama, Ramsar Site 876 (designated 2 December 1996, 67,133 ha), is a Chilean high-Andean wetland of shallow saline lagoons (Puilar, Chaxa, Barros Negros) fed by eastern groundwater, a key breeding site for three flamingo species within Los Flamencos National Reserve.

Sistema Lagunar Agiabampo - Bacorehuis - Río Fuerte Antiguo

Sistema Lagunar Agiabampo-Bacorehuis-Río Fuerte Antiguo, Ramsar site 1797, is a 90,804 ha five-lagoon coastal wetland on the Sonora-Sinaloa border, Gulf of California, designated 2 February 2008, with mangroves, migratory birds, and blue shrimp habitat.

UL Bend Wetland Management District

UL Bend Wetland Management District is the name given to the wetland management district serving UL Bend National Wildlife Refuge, a 56,090-acre refuge on the Missouri River in central Montana.

Wetland Management Districts of Iowa

The Wetland Management Districts of Iowa are U.S. Fish and Wildlife Service field offices protecting waterfowl habitat through scattered Waterfowl Production Areas and perpetual wetland easements rather than a single refuge.

Wetland Management Districts of Nebraska

The Wetland Management Districts of Nebraska are US Fish and Wildlife Service units managing scattered waterfowl production areas and easements, including the Rainwater Basin district established in 1963.