The Iberá Wetlands are a mix of swamps, bogs, stagnant lakes, lagoons, natural slough and courses of water in the province of Corrientes, Argentina. Iberá is one of the most important fresh water reservoirs in the continent and the second-largest wetland in the world after Pantanal in Brazil. It is of pluvial origin, with a total area of 15,000–20,000 km2 (5,800–7,700 sq mi).