Arroyo Helena

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Arroyo Helena flows into Río Paraná , which it joins at S 26° 25′ 24″, W 54° 41′ 52″ at OSM node n3235285850, and there 115,400 km of total upstream flows in. load it's distributaries

Arroyo Helena has 2 tributaries.

• (unnamed), which joins it at S 26° 24′ 55″, W 54° 39′ 41″ at OSM node n7610277451, and 206 m of total upstream flows in.
  load it's tributaries
• (unnamed), which joins it at S 26° 24′ 55″, W 54° 39′ 18″ at OSM node n5544924801, and 159 m of total upstream flows in.
  load it's tributaries