井川

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井川 flows into 本城川 , which it joins at N 31° 28′ 33″, E 130° 44′ 9″ at OSM node n744061911, and there 34 km of total upstream flows in. load it's distributaries

井川 has 1 tributaries.

• (unnamed), which joins it at N 31° 28′ 49″, E 130° 44′ 18″ at OSM node n744414634, and 8 km of total upstream flows in.
load it's tributaries