古川

古川 is 4 km long, and has a stream level of 4.

Map of 古川

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Distributaries / Outflows

古川 flows into 前川 , which it joins at N 37° 21′ 17″, E 140° 24′ 24″ at OSM node n757266823, and there 5 km of total upstream flows in.

Tributaries

古川 has 0 tributaries.