(unnamed)

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(unnamed) flows into 日光川 , which it joins at the following points: 105 km of total upstream flows in at N 35° 13′ 25″, E 136° 44′ 6″ at OSM node n727018732 107 km of total upstream flows in at N 35° 12′ 55″, E 136° 43′ 49″ at OSM node n727133157 110 km of total upstream flows in at N 35° 12′ 17″, E 136° 44′ 21″ at OSM node n727187965 load it's distributaries

(unnamed) has 1 tributaries.

• 須賀脇川, which joins it at N 35° 12′ 24″, E 136° 43′ 53″ at OSM node n727265618, and 547 m of total upstream flows in.
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