長堂川

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長堂川 flows into 国場川 , which it joins at N 26° 11′ 36″, E 127° 42′ 7″ at OSM node n695711066, and there 19 km of total upstream flows in. load it's distributaries

長堂川 has 2 tributaries.

• (unnamed), which joins it at N 26° 10′ 43″, E 127° 43′ 6″ at OSM node n695709087, and 1 km of total upstream flows in.
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• (unnamed), which joins it at N 26° 11′ 7″, E 127° 42′ 34″ at OSM node n695709500, and 590 m of total upstream flows in.
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