前川

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前川 flows into 山田川 , which it joins at N 36° 41′ 9″, E 139° 52′ 55″ at OSM node n759187501, and there 17 km of total upstream flows in. load it's distributaries

前川 has 2 tributaries.

• 矢入畑沢, which joins it at N 36° 41′ 7″, E 139° 51′ 8″ at OSM node n759050524, and 450 m of total upstream flows in.
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• 大蛇場沢, which joins it at N 36° 41′ 13″, E 139° 51′ 17″ at OSM node n759064753, and 350 m of total upstream flows in.
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