建有川

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建有川 flows into the sea: 22 km flows in at N 41° 39′ 36″, E 140° 26′ 5″ at OSM node n1452111825.

建有川 has 2 tributaries.

• 小股の沢川, which joins it at N 41° 40′ 10″, E 140° 23′ 18″ at OSM node n1452255427, and 5 km of total upstream flows in.
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• ギヘイ沢川, which joins it at N 41° 39′ 35″, E 140° 24′ 47″ at OSM node n1452251874, and 3 km of total upstream flows in.
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