(unnamed)

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(unnamed) flows into 水野川 , which it joins at N 35° 14′ 49″, E 137° 5′ 19″ at OSM node n727042082, and there 59 km of total upstream flows in. load it's distributaries

(unnamed) has 1 tributaries.

• 数成川, which joins it at N 35° 14′ 49″, E 137° 5′ 31″ at OSM node n727257408, and 2 km of total upstream flows in.
load it's tributaries