(unnamed)

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(unnamed) flows into Río San Juan del Oro , which it joins at S 21° 44′ 55″, W 66° 9′ 52″ at OSM node n11774793986, and there 3,043 km of total upstream flows in. load it's distributaries

(unnamed) has 1 tributaries.

• Río Viluyo, which joins it at S 21° 35′ 3″, W 66° 16′ 25″ at OSM node n3772252782, and 82 km of total upstream flows in.
load it's tributaries