One of these battles centers on the plan to blow up a natural rock formation called Pedral do Lourenço in Pará state. Spread across 43 km (27 mi) of the Tocantins River, this rock formation is ...

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The government is focused on creating a navigable channel along the 43 km of Pedral do Lourenço, a rock formation in the Tocantins River. Image courtesy of Antonio Cavalcante/Ascom Setran-PA.