(unnamed)

(unnamed) is 3 km long, and has a stream level of 2.

Map of (unnamed)

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(unnamed) flows into 安藤川 , which it joins at N 34° 53′ 32″, E 137° 7′ 19″ at OSM node n727209927, and there 20 km of total upstream flows in.

(unnamed) has 2 tributaries.

赤渋支川, which joins it at N 34° 54′ 50″, E 137° 7′ 36″ at OSM node n727229313, and 3 km of total upstream flows in.

中之郷支川, which joins it at N 34° 54′ 50″, E 137° 7′ 36″ at OSM node n727229313, and 3 km of total upstream flows in.