(unnamed)

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(unnamed) flows into 外城田川 , which it joins at N 34° 29′ 10″, E 136° 34′ 49″ at OSM node n734524038, and there 8 km of total upstream flows in. load it's distributaries

(unnamed) has 1 tributaries.

• 宮川用水第一号線, which joins it at N 34° 29′ 12″, E 136° 34′ 42″ at OSM node n734670399, and 466 m of total upstream flows in.
load it's tributaries