(unnamed)

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(unnamed) flows into 王滝川 , which it joins at N 35° 49′ 50″, E 137° 22′ 26″ at OSM node n747931347, and there 33 km of total upstream flows in. load it's distributaries

(unnamed) has 2 tributaries.

• 五味沢, which joins it at N 35° 49′ 55″, E 137° 21′ 35″ at OSM node n748294583, and 5 km of total upstream flows in.
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• アカ谷, which joins it at N 35° 50′ 2″, E 137° 21′ 10″ at OSM node n748615673, and 211 m of total upstream flows in.
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