大川

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大川 flows into 岩井川 , which it joins at N 35° 5′ 18″, E 139° 50′ 46″ at OSM node n758391855, and there 16 km of total upstream flows in. load it's distributaries

大川 has 1 tributaries.

• 合戸川, which joins it at N 35° 5′ 29″, E 139° 51′ 48″ at OSM node n758474228, and 2 km of total upstream flows in.
load it's tributaries