(unnamed)

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(unnamed) flows into 柳沢川 , which it joins at N 37° 20′ 5″, E 139° 37′ 22″ at OSM node n757187217, and there 10 km of total upstream flows in. load it's distributaries

(unnamed) has 2 tributaries.

• 中の沢, which joins it at N 37° 20′ 16″, E 139° 37′ 29″ at OSM node n756208234, and 2 km of total upstream flows in.
load it's tributaries
• 横出沢, which joins it at N 37° 20′ 16″, E 139° 37′ 29″ at OSM node n756208234, and 1 km of total upstream flows in.
load it's tributaries