本間川

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本間川 flows into 千曲川 , which it joins at N 36° 6′ 6″, E 138° 28′ 55″ at OSM node n748147509, and there 483 km of total upstream flows in. load it's distributaries

本間川 has 2 tributaries.

• 茨沢川, which joins it at N 36° 5′ 20″, E 138° 27′ 31″ at OSM node n747981565, and 12 km of total upstream flows in.
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• 荒倉川, which joins it at N 36° 5′ 20″, E 138° 27′ 31″ at OSM node n747981565, and 9 km of total upstream flows in.
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