(unnamed)

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(unnamed) flows into Río Tunuyán , which it joins at the following points: 1,752 km of total upstream flows in at S 33° 28′ 32″, W 68° 56′ 41″ at OSM node n1914130269 1,757 km of total upstream flows in at S 33° 28′ 30″, W 68° 56′ 24″ at OSM node n5315109092 load it's distributaries

(unnamed) has 1 tributaries.

• Arroyo Cruz Negra, which joins it at S 33° 27′ 37″, W 68° 57′ 39″ at OSM node n5315108920, and 2 km of total upstream flows in.
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