Iguazu Falls, Iguazú Falls, Iguassu Falls or Iguaçu Falls are waterfalls of the Iguazu River on the border of the Brazilian state of Paraná and the Argentinian province of Misiones. The falls divide the river into the upper and lower Iguazu. The Iguazu River rises near the city of Curitiba. Ther river flows through Brazil for most of its course, although most of the falls are on the Argentine side.

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