Rio Negro (Amazon)
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The Rio Negro, or Guainía as it is known in its upper part, is the largest left tributary of the Amazon River, the largest blackwater river in the world, and one of the world's ten largest rivers by average discharge.
Sunset over the Rio Negro, upstream from Manaus
Cruise ship on the Rio Negro on the way to the city of Manaus.
The confluence of the Amazon River and the Rio Negro at Manaus, Brazil.
Rio Negro near Manaus
Roraima
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Roraima is one of the 26 states of Brazil. Located in the country's North Region, it is the northernmost and most geographically and logistically isolated state in Brazil. It is bordered by the state of Pará to the southeast, Amazonas to the south and west, Venezuela to the north and northwest, and Guyana to the east.
Village of Nossa Senhora da Conceição according to Alexandre Rodrigues Ferreira, late 18th century.
Centre of Boa Vista
Landscape of the Viruá National Park
Rock formations in the Serra do Tepequém