北葛沢

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北葛沢 flows into 龍神湖 , which it joins at N 36° 30′ 52″, E 137° 45′ 45″ at OSM node n748174559, and there 9 km of total upstream flows in. load it's distributaries

北葛沢 has 2 tributaries.

• 二ノ沢川, which joins it at N 36° 30′ 52″, E 137° 45′ 16″ at OSM node n748542574, and 2 km of total upstream flows in.
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• (unnamed), which joins it at N 36° 31′ 17″, E 137° 43′ 20″ at OSM node n748188711, and 749 m of total upstream flows in.
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