(unnamed)

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(unnamed) flows into the sea: 3 km flows in at N 36° 37′ 49″, E 138° 13′ 42″ at OSM node n6193989984. 783 m flows in at N 36° 37′ 54″, E 138° 11′ 55″ at OSM node n6664926000. (unnamed) flows into 千曲川 , which it joins at the following points: 4,966 km of total upstream flows in at N 36° 39′ 18″, E 138° 15′ 52″ at OSM node n747922613 4,952 km of total upstream flows in at N 36° 38′ 2″, E 138° 15′ 6″ at OSM node n748218339 load it's distributaries

(unnamed) has 1 tributaries.

• 計渇川, which joins it at N 36° 37′ 57″, E 138° 11′ 49″ at OSM node n748335195, and 1 km of total upstream flows in.
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