古川

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古川 flows into 九頭竜川 , which it joins at N 36° 4′ 38″, E 136° 25′ 45″ at OSM node n720056212, and there 937 km of total upstream flows in. load it's distributaries

古川 has 1 tributaries.

• (unnamed), which joins it at N 36° 4′ 45″, E 136° 26′ 17″ at OSM node n720058739, and 4 km of total upstream flows in.
load it's tributaries