古武井川

古武井川 is 9 km long, and has a stream level of 0.

Map of 古武井川

This area: WaterwayMap main

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Distributaries / Outflows

古武井川 flows into the sea: 26 km flows in at N 41° 46′ 58″, E 141° 6′ 24″ at OSM node n1625692952.

Tributaries

古武井川 has 6 tributaries.

紅葉川, which joins it at N 41° 47′ 28″, E 141° 6′ 3″ at OSM node n1452375584, and 8 km of total upstream flows in.

黒沢川, which joins it at N 41° 47′ 8″, E 141° 6′ 12″ at OSM node n1452372346, and 4 km of total upstream flows in.

大梶川, which joins it at N 41° 50′ 24″, E 141° 4′ 48″ at OSM node n1452445890, and 2 km of total upstream flows in.

清水川, which joins it at N 41° 47′ 47″, E 141° 5′ 24″ at OSM node n1452379781, and 1 km of total upstream flows in.

(unnamed) , which joins it at the following points: 267 m of total upstream flows in at N 41° 50′ 41″, E 141° 4′ 37″ at OSM node n1452450354 664 m of total upstream flows in at N 41° 50′ 41″, E 141° 4′ 37″ at OSM node n1452450354

高岱川, which joins it at N 41° 47′ 17″, E 141° 6′ 6″ at OSM node n1452373710, and 853 m of total upstream flows in.