一之河内川

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一之河内川 flows into 猪八重川 , which it joins at N 31° 42′ 30″, E 131° 22′ 24″ at OSM node n742923763, and there 13 km of total upstream flows in. load it's distributaries

一之河内川 has 1 tributaries.

• (unnamed), which joins it at N 31° 42′ 32″, E 131° 22′ 47″ at OSM node n743556583, and 394 m of total upstream flows in.
load it's tributaries