(unnamed)

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(unnamed) flows into Rio Guaporé (Brasil) / Rio Itenez (Bolivia) , which it joins at S 12° 51′ 28″, W 62° 53′ 32″ at OSM node n564773080, and there 3,039 km of total upstream flows in. load it's distributaries

(unnamed) has 1 tributaries.

• Rio Massaco, which joins it at S 12° 51′ 50″, W 62° 36′ 57″ at OSM node n11380603087, and 57 km of total upstream flows in.
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