昭和川

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昭和川 flows into 礼文内川 , which it joins at N 42° 48′ 59″, E 143° 31′ 36″ at OSM node n1462249745, and there 77 km of total upstream flows in. load it's distributaries

昭和川 has 2 tributaries.

• (unnamed), which joins it at N 42° 49′ 42″, E 143° 32′ 46″ at OSM node n1462251939, and 851 m of total upstream flows in.
  load it's tributaries
• (unnamed), which joins it at N 42° 49′ 22″, E 143° 32′ 11″ at OSM node n1462250993, and 633 m of total upstream flows in.
  load it's tributaries