永井谷川

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永井谷川 flows into 伊川 , which it joins at N 34° 40′ 14″, E 135° 0′ 37″ at OSM node n970166554, and there 35 km of total upstream flows in. load it's distributaries

永井谷川 has 2 tributaries.

• (unnamed), which joins it at N 34° 41′ 16″, E 135° 1′ 26″ at OSM node n5470705809, and 352 m of total upstream flows in.
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• (unnamed), which joins it at N 34° 41′ 38″, E 135° 1′ 50″ at OSM node n5470705795, and 240 m of total upstream flows in.
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