Abuna River

Mouth of the Rio Abuna (right) in the Rio Madeira

River network with the Rio Abuna in Beni lowlands

Template: Infobox River / Obsolete

The Rio Abuna (Brazilian Rio Abunã ) is a left tributary of the Rio Madeira in the Amazon lowlands in South America.

River

The headwaters of the river form various smaller rivers, which have their origin in the Cordillera Oriental of the Peruvian Andes. The river has a total length of 375 km, of which 320 km are navigable in the lower reaches, and flows in a northeasterly direction. A portion of the lower course forms to the mouth of the Rio Madeira, the border of northern Bolivia and western Brazil.

Lie both the Bolivian settlement Manoa and the Brazilian town Abunã At the mouth of the Abuna.