(unnamed)

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(unnamed) flows into Ribeira de Seda , which it joins at N 39° 1′ 27″, W 7° 57′ 28″ at OSM node n11978344084, and there 1,343 km of total upstream flows in. load it's distributaries

(unnamed) has 1 tributaries.

• Ribeira de Alcôrrego, which joins it at N 39° 1′ 26″, W 7° 56′ 5″ at OSM node n2469421662, and 33 km of total upstream flows in.
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