山口川

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山口川 flows into 滑津川 , which it joins at N 37° 1′ 44″, E 140° 56′ 40″ at OSM node n757346526, and there 25 km of total upstream flows in. load it's distributaries

山口川 has 2 tributaries.

• 神下川, which joins it at N 37° 1′ 35″, E 140° 56′ 22″ at OSM node n756391974, and 4 km of total upstream flows in.
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• 日渡川, which joins it at N 37° 0′ 49″, E 140° 56′ 33″ at OSM node n757082378, and 1 km of total upstream flows in.
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