(unnamed)

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(unnamed) flows into 日光川 , which it joins at N 35° 5′ 31″, E 136° 48′ 40″ at OSM node n727116765, and there 496 km of total upstream flows in. load it's distributaries

(unnamed) has 1 tributaries.

• 戸田川, which joins it at N 35° 5′ 41″, E 136° 48′ 47″ at OSM node n727245849, and 32 km of total upstream flows in.
load it's tributaries