In 2008, a previously unknown precolumbian civilization was discovered in the upper region of the river close to the Bolivian border.
Hundreds of Haitian nationals seeking a better life in Brazil find themselves trapped at the Bolivian border.
It is situated near the Bolivian border and its closest city is Puerto Maldonado.
Their anxiety became even more acute in July when guerrillas killed 10 Peruvian soldiers a short distance from the Bolivian border.
Mr Carneiro said police had erected roadblocks and alerted authorities on the nearby Bolivian border.
Juana Manuela Gorriti was born in Salta near the Bolivian border.
We drove for a few miles in no-man's-land, then reached the Bolivian border, where our spirits sagged.
However, in 2007 a paved connection to the Bolivian border was completed across the Chaco region.
Situated on the Paraguay River, on the Bolivian border, it had long since declared itself to be the capital of the Pantanal.
RN40 begins at the Bolivian border at La Quiaca.