(unnamed)

This area: WaterwayMap main osm.org edit in josm JOSM isn't running... edit in josm (new layer) JOSM isn't running... edit in iD geo: url (open on mobile)

(unnamed) flows into 天塩川 , which it joins at N 44° 55′ 1″, E 141° 43′ 43″ at OSM node n1465605032, and there 6,285 km of total upstream flows in. load it's distributaries

(unnamed) has 4 tributaries.

• 南川口一号川, which joins it at N 44° 54′ 11″, E 141° 45′ 8″ at OSM node n1465596068, and 6 km of total upstream flows in.
load it's tributaries
• 川口四号川, which joins it at N 44° 54′ 36″, E 141° 44′ 59″ at OSM node n1465600205, and 5 km of total upstream flows in.
load it's tributaries
• 川口五号川, which joins it at N 44° 55′ 1″, E 141° 44′ 46″ at OSM node n1465605081, and 4 km of total upstream flows in.
load it's tributaries
• エンタ川, which joins it at N 44° 55′ 2″, E 141° 44′ 1″ at OSM node n1465605262, and 2 km of total upstream flows in.
load it's tributaries