岡川

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岡川 flows into 清武川 , which it joins at N 31° 51′ 8″, E 131° 23′ 36″ at OSM node n743112176, and there 121 km of total upstream flows in. load it's distributaries

岡川 has 2 tributaries.

• 大久保川, which joins it at N 31° 51′ 33″, E 131° 22′ 8″ at OSM node n742724792, and 6 km of total upstream flows in.
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• 祝田川, which joins it at N 31° 51′ 7″, E 131° 23′ 15″ at OSM node n743122520, and 2 km of total upstream flows in.
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