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The Amazon River (UK: / ˈ æ m ə z ən /, US: / ˈ æ m ə z ɒ n /; Spanish: Río Amazonas, Portuguese: Rio Amazonas) in South America is the largest river by discharge volume of water in the world, and the longest or second-longest river system in the world, a title which is disputed with the Nile. [3] [23] [n 4]
The Amazon basin is the part of South America drained by the Amazon River and its tributaries. The Amazon drainage basin covers an area of about 7,000,000 km 2 (2,700,000 sq mi), [ 1 ] or about 35.5 percent of the South American continent.
The Amazon Delta (Portuguese: delta do Amazonas) is a vast river delta formed by the Amazon River and the Tocantins River (through the Pará River distributary channel) in northern South America. [ 1 ] [ 2 ] [ 3 ] It is located in the Brazilian states of Amapá and Pará [ 4 ] and encompasses the Marajó Archipelago , with Marajó Island as its ...
The Rio Negro (Spanish: Río Negro [ˈri.o ˈneɣɾo] "Black River"), or Guainía as it is known in its upper part, is the largest left tributary of the Amazon River (accounting for about 14% of the water in the Amazon basin), the largest blackwater river in the world, [8] and one of the world's ten largest rivers by average discharge.
Tres Fronteras (Portuguese: Três Fronteiras, English: Three Frontiers) is an area of the Amazon rainforest in the Upper Amazon region of South America. It includes, and is named for, the tripoint where the borders of Brazil, Peru, and Colombia meet. The upper Amazon River flows through the area.
The upper reaches of the Amazon River of western South America. In Peru, the Upper Amazon comprises a series of major river systems that flow north and south into the Marañón and Amazon Rivers. Among others, these include the following: Morona, Pastaza, Nucuray, Urituyacu, Chambira, Tigre, Nanay, Napo, Huallaga, and Ucayali.
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Amazon alluvium deposit. The Amazon Basin is a large sedimentary basin (620,000 square kilometres (240,000 sq mi)) located near the middle and lower course of the Amazon River, south the Guiana Shield and north of the Central Brazilian Shield. The basin developed on a rift that originated about 550 million years ago during the Cambrian.