The Coco River ( pt, Rio do Coco) is a river of
Tocantins
Tocantins () is one of the 26 states of Brazil. It is the newest state, formed in 1988 and encompassing what had formerly been the northern two-fifths of the state of Goiás. Tocantins covers and had an estimated population of 1,496,880 in 20 ...
state in central
Brazil
Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...
. It is a tributary of the
Araguaia River.
Lower course
The lower portion of the Coco River forms the eastern boundary of the
Cantão State Park, and the western boundary of the
Ilha do Bananal/Cantão Environmental Protection Area.
This section was probably originally a meander of the
Javaés River, in turn a branch of the Araguaia.
The frequently flooded
Cantão Cantão is a tropical forest ecosystem located in the central Araguaia river basin, the southeastern edge of the Amazon biome, in the Brazilian state of Tocantins. It is one of the biologically richest areas of the eastern Amazon, with over 70 ...
region between the Coco and Araguaia rivers holds an
ecotone
An ecotone is a transition area between two biological communities, where two communities meet and integrate. It may be narrow or wide, and it may be local (the zone between a field and forest) or regional (the transition between forest and gras ...
between the Amazon and Cerrado biomes.
See also
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List of rivers of Tocantins
List of rivers in Tocantins (Brazilian State).
The list is arranged by drainage basin, with respective tributaries indented under each larger stream's name and ordered from downstream to upstream. The Tocantins state is located entirely within the ...
References
Sources
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Rivers of Tocantins
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