Abuna River

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Abuna River
Bolivia north.jpg
On the right is the Abuna River, on the left is the Madeira River
Countries Bolivia, Brazil
Region Pando Department
Mouth Madeira River
 - coordinates 9°40′18″S 65°26′47″W / 9.67167°S 65.44639°W / -9.67167; -65.44639Coordinates: 9°40′18″S 65°26′47″W / 9.67167°S 65.44639°W / -9.67167; -65.44639
Length 500 km (311 mi) [1]
Rio Negro map.jpg

The Abuna River (Spanish: Río Abuná, Portuguese: Rio Abunã) is a river in South America. As a part of the Amazon Basin, it forms part of the border between northern Bolivia and north-western Brazil.

The river has a total length of 375 kilometres (233 mi). It originates in several streams east of the Cordillera Oriental of the Peruvian Andes. The river is navigable for circa 320 kilometres (200 mi) in its lower northeastern part. At Manoa it joins the Río Madeira, a tributary of the Amazon. Opposite the river mouth there is the town of Abunã on the Brazilian side of the confluence.


  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.