Top 5 Longest Rivers in South America

1.Tocantins

Runs Through: Brazil Runs Through: Brazil

Runs Through: Brazil and Bolivia Runs Through: Brazil and Bolivia

Runs Through: Brazil and Peru Runs Through: Brazil and Peru

Runs Through: Brazil, Argentina, Uruguay, Paraguay, and Bolivia Runs Through: Brazil, Argentina, Uruguay, Paraguay, and Bolivia

Runs Through: Brazil, Peru, Colombia, Ecuador, Bolivia, and Venezuela Runs Through: Brazil, Peru, Colombia, Ecuador, Bolivia, and Venezuela