黒防川

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黒防川 flows into 小森川 , which it joins at N 33° 8′ 32″, E 129° 48′ 58″ at OSM node n716230081, and there 28 km of total upstream flows in. load it's distributaries

黒防川 has 3 tributaries.

• (unnamed), which joins it at N 33° 8′ 35″, E 129° 49′ 2″ at OSM node n5360366838, and 106 m of total upstream flows in.
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• (unnamed), which joins it at N 33° 9′ 21″, E 129° 48′ 41″ at OSM node n5360480862, and 105 m of total upstream flows in.
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• (unnamed), which joins it at N 33° 8′ 39″, E 129° 49′ 0″ at OSM node n716230155, and 84 m of total upstream flows in.
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