(unnamed)

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(unnamed) flows into 定川 , which it joins at N 38° 30′ 15″, E 141° 9′ 27″ at OSM node n754808687, and there 22 km of total upstream flows in. load it's distributaries

(unnamed) has 1 tributaries.

• 青木川, which joins it at N 38° 30′ 41″, E 141° 9′ 18″ at OSM node n754661565, and 20 km of total upstream flows in.
load it's tributaries