Rio Negro Basin

The above Landsat 7 scene shows the Rio Negro flowing through the

eastern edge of Brazil’s Jau National Park. The river is the big strip

of blue running from left to right across the image, and the other

blue ribbons are tributaries. Originating at the border of Venezuela

and Brazil, the Rio Negro meets up with the Amazon in central

Brazil to become its largest tributary. Half-submerged islands can be

seen in the center of the river. Between November and April when the

river is at its peak, many of these islands disappear.

The land to the left of the river is the eastern edge of the Jau National

Park. The park is the largest forest reserve in South America and

covers an area greater than 5.6 million acres. Requiring the direct

permission of the Brazilian government to enter, the park forms

one of the most exquisite examples of tropical rainforest and

conservation in the Amazon. It houses spotted jaguars, manatees,

pink river dolphins, and numerous other species of animals

and plants.

Photo courtesy of NASA.

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