山口川

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山口川 flows into 穂波川 , which it joins at N 33° 33′ 46″, E 130° 38′ 53″ at OSM node n745278878, and there 30 km of total upstream flows in. load it's distributaries

山口川 has 1 tributaries.

• (unnamed), which joins it at N 33° 33′ 17″, E 130° 37′ 11″ at OSM node n745455288, and 4 km of total upstream flows in.
load it's tributaries