北海洪河

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北海洪河 flows into 海界河 , which it joins at N 32° 1′ 0″, E 121° 29′ 58″ at OSM node n3584492111, and there 11 km of total upstream flows in. load it's distributaries

北海洪河 has 2 tributaries.

• (unnamed), which joins it at N 32° 0′ 58″, E 121° 29′ 31″ at OSM node n3584492070, and 572 m of total upstream flows in.
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• (unnamed), which joins it at N 32° 0′ 59″, E 121° 29′ 32″ at OSM node n3584492077, and 149 m of total upstream flows in.
load it's tributaries