Triple Frontier

The Triple Frontier (Spanish: La Triple Frontera, Portuguese: Tríplice Fronteira) is a tri-border area along the junction of Paraguay, Argentina, and Brazil, where the Iguazú and Paraná rivers converge. Near the confluence are the cities of Ciudad del Este (Paraguay); Puerto Iguazú (Argentina) and Foz do Iguaçu (Brazil). This area is near Iguazú Falls and the Itaipú hydroelectric plant.

The population in the Triple Frontier is concentrated in three border cities. Of these, the largest is Ciudad del Este in Paraguay, which in 2010 had a population of 390,000, while the smallest with a population of 82,000 is Puerto Iguazú, Argentina. The tourist-centric Brazilian city Foz do Iguaçu has a population of 300,000. The Arab and other Asian immigrant communities, which make up an important part of the urban population in the Tri-Border Area, are estimated to number approximately 50,000.

The Triple Frontier is an important tourist area, within the touristic subregion of the Región de las Aguas Grandes. Visitors can see the Tancredo Neves bridge, which connects the Argentine city of Puerto Iguazú and its Brazilian neighbor, Foz do Iguaçu. At the convergence of the borders, each of the three bordering countries has erected an obelisk, painted in the national colors of the country in which it is located. All three countries can be seen from each of the obelisks.

The Guarani Aquifer is arguably the biggest reservoir of fresh, potable water in the world - right under Triple Border soil (Brazil, Argentina and Paraguay). The majority (71%) of its 1.2 million square kilometers lies in Brazil.

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