(unnamed)

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(unnamed) flows into 吉田川 , which it joins at N 35° 51′ 37″, E 137° 3′ 28″ at OSM node n725930104, and there 29 km of total upstream flows in. load it's distributaries

(unnamed) has 1 tributaries.

• 水洞谷, which joins it at N 35° 51′ 33″, E 137° 3′ 40″ at OSM node n726142188, and 543 m of total upstream flows in.
load it's tributaries