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Amazon
The Amazon, about 6,400 km, is by far the world's largest river by discharge, crossing South America to the Atlantic.
💡 Did you know? The Amazon carries more water than the next seven rivers combined.
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Madeira
The Madeira, about 3,250 km, is the Amazon's largest tributary.
💡 Did you know? The Madeira is the largest tributary of the Amazon.
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Magdalena
The Magdalena, about 1,530 km, is Colombia's most important river, reaching the Caribbean.
💡 Did you know? The Magdalena is the most important river in Colombia.
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Marañón
The Marañón, about 1,700 km, is one of the Amazon's headstreams in Peru.
💡 Did you know? The Marañón is considered a source river of the Amazon.
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Orinoco
The Orinoco, about 2,140 km, flows mainly through Venezuela into the Atlantic.
💡 Did you know? The Orinoco forms much of the Venezuela-Colombia border.
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Paraná
The Paraná, about 4,880 km, is South America's second-longest river, reaching the Río de la Plata.
💡 Did you know? The Paraná is South America's second-longest river after the Amazon.
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Pilcomayo
The Pilcomayo, about 1,100 km, is a tributary of the Paraguay River.
💡 Did you know? The Pilcomayo crosses the Gran Chaco.
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Negro River
The Río Negro, about 2,250 km, carries dark water and is a major Amazon tributary.
💡 Did you know? The Río Negro carries dark water and joins the Amazon.
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São Francisco
The São Francisco, about 2,900 km, is the longest river entirely within Brazil.
💡 Did you know? The São Francisco is an important river in eastern Brazil.
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Tocantins
The Tocantins, about 2,450 km, flows through Brazil into the Atlantic.
💡 Did you know? The Tocantins reaches the Atlantic near the Amazon's mouth.
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Ucayali
The Ucayali, about 1,600 km, is another headstream of the Amazon in Peru.
💡 Did you know? The Ucayali is also a source river of the Amazon.
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Uruguay
The Uruguay, about 1,840 km, forms borders and reaches the Río de la Plata.
💡 Did you know? The Uruguay river gave the country its name.
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