(unnamed)

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(unnamed) flows into Rio Alva , which it joins at N 40° 16′ 8″, W 7° 59′ 24″ at OSM node n5476733818, and there 985 km of total upstream flows in. load it's distributaries

(unnamed) has 1 tributaries.

• Ribeira da Mata, which joins it at N 40° 16′ 7″, W 7° 59′ 23″ at OSM node n5476733815, and 87 km of total upstream flows in.
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