What is the river that flows through the world's largest forest?

 What is the river that flows through the world's largest forest?

The world's longest river, the Amazon, flows 4,345 miles from the Andes in Peru, through Brazil, through the Amazon forest to the Atlantic Ocean.

The starting point or the western source of the Amazon River is located in the Andes Mountains, about 100 miles from the Pacific Ocean, and its mouth is located in the Atlantic Ocean on the northeast coast of Brazil.

A recent study in the journal Area published a different opinion about the origin of the Amazon River. In it, Cathovarun says that the actual source of the river is in southwestern Peru along the Mantaro River.

 However, it is widely accepted that the rivers flowing westward through present-day northern Brazil, millions of years ago, flowed into the Atlantic Ocean, where the Amazon River was born.