洞谷川

洞谷川 is 3 km long, and has a stream level of 1.

Map of 洞谷川

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洞谷川 flows into 湖山川 , which it joins at N 35° 28′ 35″, E 134° 7′ 2″ at OSM node n749602723, and there 13 km of total upstream flows in.

洞谷川 has 1 tributaries.

(unnamed) , which joins it at the following points: 1 km of total upstream flows in at N 35° 27′ 41″, E 134° 5′ 59″ at OSM node n5888240549 1 km of total upstream flows in at N 35° 27′ 41″, E 134° 5′ 59″ at OSM node n5888240549