(unnamed)

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(unnamed) flows into 小鴨川 , which it joins at N 35° 26′ 42″, E 133° 50′ 27″ at OSM node n749129166, and there 248 km of total upstream flows in. load it's distributaries

(unnamed) has 2 tributaries.

• 絵下谷川, which joins it at N 35° 26′ 23″, E 133° 50′ 32″ at OSM node n749386847, and 4 km of total upstream flows in.
load it's tributaries
• 玉川, which joins it at N 35° 26′ 23″, E 133° 50′ 32″ at OSM node n749386847, and 3 km of total upstream flows in.
load it's tributaries