(unnamed)

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(unnamed) flows into Rio Ivaí , which it joins at S 23° 14′ 8″, W 52° 59′ 56″ at OSM node n536008899, and there 12,467 km of total upstream flows in. load it's distributaries

(unnamed) has 1 tributaries.

• Ribeirão Tapiracuí, which joins it at S 23° 14′ 12″, W 52° 59′ 56″ at OSM node n10543124428, and 560 km of total upstream flows in.
load it's tributaries