(unnamed)

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(unnamed) flows into Arroio Aroeira , which it joins at S 29° 45′ 12″, W 51° 14′ 15″ at OSM node n6243566701, and there 20 km of total upstream flows in. load it's distributaries

(unnamed) has 1 tributaries.

• Arroio Boa Vista, which joins it at S 29° 45′ 13″, W 51° 14′ 45″ at OSM node n6561581363, and 8 km of total upstream flows in.
load it's tributaries