(unnamed)

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(unnamed) flows into Rio Vizela , which it joins at N 41° 21′ 45″, W 8° 22′ 24″ at OSM node n6552710676, and there 246 km of total upstream flows in. load it's distributaries

(unnamed) has 1 tributaries.

• Ribeira de Roriz, which joins it at N 41° 21′ 41″, W 8° 22′ 24″ at OSM node n7735150634, and 3 km of total upstream flows in.
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