１の沢川

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１の沢川 flows into 芽登川 , which it joins at N 43° 17′ 8″, E 143° 25′ 1″ at OSM node n1462467897, and there 58 km of total upstream flows in. load it's distributaries

１の沢川 has 1 tributaries.

• (unnamed), which joins it at N 43° 17′ 10″, E 143° 23′ 43″ at OSM node n1462468182, and 565 m of total upstream flows in.
load it's tributaries