長坂川

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長坂川 flows into 十川 , which it joins at N 40° 39′ 35″, E 140° 36′ 50″ at OSM node n753463503, and there 19 km of total upstream flows in. load it's distributaries

長坂川 has 1 tributaries.

• (unnamed), which joins it at N 40° 38′ 54″, E 140° 37′ 17″ at OSM node n753726848, and 4 km of total upstream flows in.
load it's tributaries