(unnamed)

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(unnamed) flows into 大井川 , which it joins at N 35° 12′ 37″, E 138° 13′ 22″ at OSM node n735326008, and there 419 km of total upstream flows in. load it's distributaries

(unnamed) has 2 tributaries.

• 大井川, which joins it at N 35° 12′ 35″, E 138° 13′ 42″ at OSM node n735253041, and 417 km of total upstream flows in.
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• スネ沢, which joins it at N 35° 12′ 35″, E 138° 13′ 42″ at OSM node n735253041, and 1 km of total upstream flows in.
load it's tributaries