西山川

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西山川 flows into 田布施川 , which it joins at N 33° 58′ 11″, E 132° 0′ 46″ at OSM node n749384447, and there 22 km of total upstream flows in. load it's distributaries

西山川 has 2 tributaries.

• 後西山川, which joins it at N 33° 57′ 49″, E 132° 0′ 18″ at OSM node n749830857, and 907 m of total upstream flows in.
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• 原田川, which joins it at N 33° 57′ 50″, E 132° 0′ 19″ at OSM node n749853615, and 489 m of total upstream flows in.
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