(unnamed)

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(unnamed) flows into the sea: 3 km flows in at N 35° 57′ 19″, E 139° 55′ 18″ at OSM node n5561086621. 1 km flows in at N 35° 59′ 40″, E 139° 52′ 38″ at OSM node n758100178. (unnamed) has 2 distributaries.

• 利根川 , which it joins at the following points: 8,006 km of total upstream flows in at N 35° 59′ 13″, E 139° 53′ 12″ at OSM node n758142591. 7,939 km of total upstream flows in at N 36° 3′ 44″, E 139° 48′ 49″ at OSM node n758273927. 7,978 km of total upstream flows in at N 36° 1′ 7″, E 139° 52′ 2″ at OSM node n4441647932. 8,011 km of total upstream flows in at N 35° 58′ 35″, E 139° 54′ 3″ at OSM node n6898250291. load it's distributaries
• 江戸川 , which it joins at N 36° 3′ 43″, E 139° 47′ 21″ at OSM node n758085047, and 19 km of total upstream flows in. load it's distributaries

(unnamed) has 0 tributaries.