Confluence of the Paraná and Uruguay Rivers – April 20th, 2009
The Paraná River snakes southward then curves to the East, after which it merges with the Uruguay River. At this convergence, it becomes the Río de la Plata, the world’s widest estuary.
An estimated 57 million cubic metres (2 billion cubic feet) of silt is carried into the estuary each year, where the muddy waters are stirred up by winds and the tides. Here, such sediments differ in color: the Paraná carries light tan sediments, while those in the Uruguay appear dark brown.
Argentina’s capital city, Buenos Aires, can be seen on the southern banks of the estuary.