宮古川

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宮古川 flows into 一の戸川 , which it joins at N 37° 38′ 40″, E 139° 46′ 31″ at OSM node n756549948, and there 148 km of total upstream flows in. load it's distributaries

宮古川 has 1 tributaries.

• 舟引川, which joins it at N 37° 39′ 48″, E 139° 45′ 8″ at OSM node n757226466, and 1 km of total upstream flows in.
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