前原川

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前原川 flows into 関川 , which it joins at N 33° 3′ 59″, E 130° 33′ 27″ at OSM node n744414202, and there 4 km of total upstream flows in. load it's distributaries

前原川 has 1 tributaries.

• (unnamed), which joins it at N 33° 4′ 14″, E 130° 33′ 40″ at OSM node n744551205, and 954 m of total upstream flows in.
load it's tributaries