Blackwater River

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Blackwater River flows into Mangles River , which it joins at S 41° 49′ 18″, E 172° 23′ 43″ at OSM node n11609730584, and there 112 km of total upstream flows in. load it's distributaries

Blackwater River has 1 tributaries.

• (unnamed), which joins it at S 41° 51′ 27″, E 172° 24′ 4″ at OSM node n12462058122, and 483 m of total upstream flows in.
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