(unnamed)

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(unnamed) flows into 九塚川 , which it joins at N 35° 5′ 19″, E 133° 16′ 1″ at OSM node n749470862, and there 4 km of total upstream flows in. load it's distributaries

(unnamed) has 1 tributaries.

• 杉谷川, which joins it at N 35° 5′ 38″, E 133° 15′ 12″ at OSM node n749140780, and 605 m of total upstream flows in.
load it's tributaries