Jari River

The Jari River, or Jary River (Portuguese: Rio Jari), is a northern tributary of the Amazon River on the border between the states of Pará and Amapá in northeastern Brazil. It is in the most downstream regions of the Amazon Basin and borders the Guiana Highlands and the Guianas to the northwest.

Jari River
Jary River
Rio Jari.JPG
Jari River near Monte Dourado
Jari rivermap.PNG
Amazon Basin with Jari River in the northeast
Native nameRio Jari
StateAmapá, Pará
Physical characteristics
MouthAmazon River
 • location
 • coordinates
1°9′S 51°54′W / 1.150°S 51.900°W / -1.150; -51.900Coordinates: 1°9′S 51°54′W / 1.150°S 51.900°W / -1.150; -51.900
Length790 km (490 mi)[1]
Basin size60,000 km2 (23,000 sq mi)
 • average1,005–1,880 m3/s (35,500–66,400 cu ft/s)


The river flows through the Uatuma-Trombetas moist forests ecoregion.[2] The source of the Jari is in the south of the Tumuk Humak Mountains, and its mouth is at the Amazon River between the municipalities of Almeirim in Pará and Vitória do Jari in Amapá. Ilha Grande de Gurupá, the second-largest island of the Amazon River Delta, is opposite of the mouth of the Jari River.[3] Part of the river's basin is in the Maicuru Biological Reserve.[4]

The Jari River forms the western boundary of the Tumucumaque Mountains National Park. Below the park it forms the western boundary of the 806,184 hectares (1,992,120 acres) Rio Iratapuru Sustainable Development Reserve, created in 1997.[5] For part of its course it runs through the Jari Ecological Station. Small numbers of people have settled along the river here, built houses and cleared fields.[6]


See alsoEdit


  1. ^ Ziesler, R.; Ardizzone, G.D. (1979). "Amazon River System". The Inland waters of Latin America. Food and Agriculture Organization of the United Nations. ISBN 92-5-000780-9. Archived from the original on 8 November 2014.
  2. ^ Sears, Robin, Northern South America: Northeastern Brazil, into southern Guyana and Suriname (NT0173), WWF: World Wildlife Fund, retrieved 31 March 2017
  3. ^ "Jari River". Encyclopædia Britannica. Encyclopædia Britannica Inc. 2015. Retrieved 13 February 2015.
  4. ^ Plano de Manejo da Reserva Biológica Maicuru Resumo Executivo (PDF), Belém: SEMA: Secretaria de Estado de Meio Ambiente, May 2011, p. 8, retrieved 14 May 2016
  5. ^ RDS do Rio Iratapuru (in Portuguese), ISA: Instituto Socioambiental, retrieved 5 November 2016
  6. ^ EE do Jari (in Portuguese), WWF-Brasil Protected Areas Observatory, archived from the original on 3 March 2016, retrieved 10 March 2016