(unnamed)

(unnamed) is 5 km long, and has a stream level of 2.

Map of (unnamed)

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It has 1 side channels.

(unnamed) has 2 distributaries.

新方川 , which it joins at the following points: 156 km of total upstream flows in at N 35° 56′ 16″, E 139° 46′ 38″ at OSM node n309579286. 209 km of total upstream flows in at N 35° 55′ 47″, E 139° 47′ 30″ at OSM node n1047343184. 83 km of total upstream flows in at N 35° 56′ 15″, E 139° 46′ 6″ at OSM node n1047456740. 184 km of total upstream flows in at N 35° 55′ 55″, E 139° 47′ 22″ at OSM node n1048202752. 240 km of total upstream flows in at N 35° 55′ 18″, E 139° 47′ 52″ at OSM node n1048473709.
平新川 , which it joins at N 35° 56′ 6″, E 139° 47′ 49″ at OSM node n1048412178, and 26 km of total upstream flows in.

(unnamed) has 2 tributaries.

大落古利根川, which joins it at N 35° 57′ 31″, E 139° 46′ 39″ at OSM node n1047386327, and 272 km of total upstream flows in.

安之堀川, which joins it at N 35° 57′ 1″, E 139° 45′ 14″ at OSM node n1048061489, and 1 km of total upstream flows in.