岩戸原川

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岩戸原川 flows into 切原川 , which it joins at N 32° 10′ 21″, E 131° 28′ 27″ at OSM node n742977722, and there 20 km of total upstream flows in. load it's distributaries

岩戸原川 has 1 tributaries.

• (unnamed), which joins it at N 32° 11′ 18″, E 131° 27′ 28″ at OSM node n743585528, and 368 m of total upstream flows in.
load it's tributaries