山宮川

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山宮川 flows into 大石川 , which it joins at N 35° 38′ 42″, E 138° 41′ 49″ at OSM node n758645033, and there 11 km of total upstream flows in. load it's distributaries

山宮川 has 1 tributaries.

• 京戸川, which joins it at N 35° 38′ 26″, E 138° 42′ 13″ at OSM node n759087456, and 6 km of total upstream flows in.
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