伊保堂川

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伊保堂川 flows into 伊保川 , which it joins at N 35° 7′ 48″, E 137° 8′ 14″ at OSM node n727036173, and there 23 km of total upstream flows in. load it's distributaries

伊保堂川 has 1 tributaries.

• (unnamed), which joins it at N 35° 8′ 8″, E 137° 8′ 12″ at OSM node n727032023, and 853 m of total upstream flows in.
load it's tributaries