Atabapo River is a river of Venezuela and Colombia. It forms the international boundary between the two countries for much of its length. It is part of the Orinoco River basin.
Source: Wills, Fernando; et al. (2001). Nuestro patrimonio – 100 tesoros de Colombia [Our heritage – 100 treasures of Colombia] (in Spanish). El Tiempo. pp. 1–311. ISBN958-8089-16-6.
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