一番沢川

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一番沢川 flows into 琵琶瀬川 , which it joins at N 43° 3′ 29″, E 145° 4′ 45″ at OSM node n1453268257, and there 78 km of total upstream flows in. load it's distributaries

一番沢川 has 3 tributaries.

• 二番沢川, which joins it at N 43° 3′ 23″, E 145° 4′ 18″ at OSM node n1453267993, and 13 km of total upstream flows in.
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• 一番小沢川, which joins it at N 43° 3′ 27″, E 145° 1′ 49″ at OSM node n1453268137, and 696 m of total upstream flows in.
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• 裏の川, which joins it at N 43° 2′ 59″, E 145° 4′ 13″ at OSM node n1453266463, and 576 m of total upstream flows in.
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