(unnamed)

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(unnamed) flows into 原川 , which it joins at N 34° 54′ 33″, E 135° 23′ 24″ at OSM node n970408690, and there 4 km of total upstream flows in. load it's distributaries

(unnamed) has 1 tributaries.

• 内馬場川, which joins it at N 34° 54′ 41″, E 135° 23′ 29″ at OSM node n969672774, and 2 km of total upstream flows in.
load it's tributaries