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