郡馬川

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郡馬川 flows into 登延頃川 , which it joins at N 42° 44′ 26″, E 140° 56′ 56″ at OSM node n1463189997, and there 28 km of total upstream flows in. load it's distributaries

郡馬川 has 1 tributaries.

• 笠原の川, which joins it at N 42° 43′ 49″, E 140° 56′ 59″ at OSM node n1463185866, and 3 km of total upstream flows in.
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