コタン川

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コタン川 flows into 長流枝内川 , which it joins at N 43° 1′ 17″, E 143° 21′ 6″ at OSM node n1475813687, and there 21 km of total upstream flows in. load it's distributaries

コタン川 has 1 tributaries.

• (unnamed), which joins it at N 43° 1′ 9″, E 143° 20′ 44″ at OSM node n1475813423, and 927 m of total upstream flows in.
  load it's tributaries