(unnamed)

(unnamed) is 1 km long, and has a stream level of 3.

Map of (unnamed)

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(unnamed) flows into 杉山川 , which it joins at N 36° 7′ 50″, E 136° 32′ 35″ at OSM node n720065751, and there 6 km of total upstream flows in.

(unnamed) has 1 tributaries.

西又沢, which joins it at N 36° 7′ 56″, E 136° 32′ 31″ at OSM node n720065765, and 3 km of total upstream flows in.