It crosses a variety of terrains, going from large urban areas by inhospitable deserts and wetlands. It starts within the framework of the three borders, between Foz do Iguaçu and President Franco and ends in the triple border with Bolivia, near the Paraguayan city of Bahía Negra. On the border between Brazil and Paraguay, lies the Itaipu Hydroelectric Power Plant, which is one of the largest hydroelectric plants in the world in terms of annual energy generation.