古川

古川 is 1 km long, and has a stream level of 0.

Map of 古川

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古川 flows into the sea: 18 km flows in at N 33° 58′ 20″, E 136° 11′ 39″ at OSM node n734277605.

古川 has 2 tributaries.

(unnamed), which joins it at N 33° 58′ 24″, E 136° 10′ 59″ at OSM node n734485563, and 16 km of total upstream flows in.

鈴河川, which joins it at N 33° 58′ 24″, E 136° 10′ 59″ at OSM node n734485563, and 1 km of total upstream flows in.