(unnamed)

(unnamed) is 2 km long, and has a stream level of 2.

Map of (unnamed)

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(unnamed) flows into 日野川 , which it joins at N 35° 42′ 50″, E 136° 15′ 27″ at OSM node n719805980, and there 28 km of total upstream flows in.

(unnamed) has 3 tributaries.

日野川, which joins it at N 35° 42′ 55″, E 136° 16′ 19″ at OSM node n719806030, and 17 km of total upstream flows in.

岩谷川, which joins it at N 35° 42′ 54″, E 136° 15′ 38″ at OSM node n719805995, and 8 km of total upstream flows in.

黒谷川, which joins it at N 35° 42′ 55″, E 136° 16′ 19″ at OSM node n719806030, and 976 m of total upstream flows in.