(unnamed)

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(unnamed) flows into 大内山川 , which it joins at the following points: 14 km of total upstream flows in at N 34° 15′ 46″, E 136° 20′ 44″ at OSM node n734270502 14 km of total upstream flows in at N 34° 15′ 46″, E 136° 20′ 44″ at OSM node n734270502 load it's distributaries

(unnamed) has 2 tributaries.

• 大内山川, which joins it at N 34° 15′ 30″, E 136° 20′ 33″ at OSM node n734257066, and 26 km of total upstream flows in.
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• 米ヶ谷奥川, which joins it at N 34° 15′ 30″, E 136° 20′ 33″ at OSM node n734257066, and 739 m of total upstream flows in.
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