川口川

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川口川 flows into 渡良瀬川 , which it joins at N 36° 29′ 5″, E 139° 15′ 50″ at OSM node n760029853, and there 341 km of total upstream flows in. load it's distributaries

川口川 has 2 tributaries.

• 猿川, which joins it at N 36° 30′ 13″, E 139° 14′ 33″ at OSM node n759424263, and 10 km of total upstream flows in.
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• 鳥居川, which joins it at N 36° 30′ 13″, E 139° 14′ 33″ at OSM node n759424263, and 6 km of total upstream flows in.
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