How Deep Is the Amazon River?

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The average depth of the Brazil section of the Amazon River is about 150 feet, with maximum depths reaching about 300 feet. In the section of the river between Manacapuru and Óbidos, the depth ranges between 66 and 85 feet.

The dimensions of the Amazon River vary based on the season, with widths between 1 and 6.2 miles during low river stage and widths as great as 35 miles during the rainy season, according to the Smithsonian National Zoo. The entire river runs an approximate length of 4,195 miles, beginning in the Andes Mountains and emptying into the Atlantic Ocean. The discharge of the river is measured at about 6.350 million cubic feet per second annually.