(unnamed)

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(unnamed) flows into the sea: 855 m flows in at N 35° 17′ 35″, E 136° 55′ 48″ at OSM node n5720660300. 851 m flows in at N 35° 17′ 38″, E 136° 55′ 48″ at OSM node n5720660318. 406 m flows in at N 35° 17′ 44″, E 136° 56′ 9″ at OSM node n5720660298.

(unnamed) has 1 tributaries.

• 外掘川, which joins it at N 35° 17′ 48″, E 136° 56′ 9″ at OSM node n726996473, and 653 m of total upstream flows in.
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