(unnamed)

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(unnamed) flows into 奥入瀬川 , which it joins at N 40° 35′ 41″, E 141° 24′ 11″ at OSM node n753743777, and there 597 km of total upstream flows in. load it's distributaries

(unnamed) has 1 tributaries.

• 奥入瀬川, which joins it at N 40° 36′ 7″, E 141° 21′ 44″ at OSM node n9671954837, and 590 km of total upstream flows in.
load it's tributaries