古戸沢川

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古戸沢川 flows into 皿貝川 , which it joins at N 38° 32′ 32″, E 141° 22′ 44″ at OSM node n8253554169, and there 19 km of total upstream flows in. load it's distributaries

古戸沢川 has 1 tributaries.

• (unnamed), which joins it at N 38° 32′ 35″, E 141° 22′ 39″ at OSM node n8253554165, and 388 m of total upstream flows in.
load it's tributaries