黒沢川

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黒沢川 flows into 古武井川 , which it joins at N 41° 47′ 8″, E 141° 6′ 12″ at OSM node n1452372346, and there 25 km of total upstream flows in. load it's distributaries

黒沢川 has 1 tributaries.

• 黒沢１号川, which joins it at N 41° 47′ 50″, E 141° 6′ 44″ at OSM node n1452380687, and 876 m of total upstream flows in.
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