岩山の川

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岩山の川 flows into 登延頃川 , which it joins at N 42° 43′ 57″, E 140° 57′ 38″ at OSM node n1463186686, and there 18 km of total upstream flows in. load it's distributaries

岩山の川 has 1 tributaries.

• (unnamed), which joins it at N 42° 43′ 19″, E 140° 57′ 36″ at OSM node n1463182244, and 875 m of total upstream flows in.
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