(unnamed)

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(unnamed) flows into Río Rosario , which it joins at S 34° 19′ 45″, W 57° 19′ 31″ at OSM node n1743155450, and there 423 km of total upstream flows in. load it's distributaries

(unnamed) has 1 tributaries.

• Arroyo del Paso de la Arena, which joins it at S 34° 19′ 44″, W 57° 20′ 15″ at OSM node n4367865166, and 4 km of total upstream flows in.
load it's tributaries