(unnamed)

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(unnamed) flows into 無数河川 , which it joins at N 36° 3′ 4″, E 137° 15′ 32″ at OSM node n726446999, and there 21 km of total upstream flows in. load it's distributaries

(unnamed) has 2 tributaries.

• 樋ヶ洞, which joins it at N 36° 2′ 54″, E 137° 15′ 14″ at OSM node n726172181, and 2 km of total upstream flows in.
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• 野林谷, which joins it at N 36° 2′ 50″, E 137° 15′ 13″ at OSM node n726061813, and 1 km of total upstream flows in.
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