(unnamed)

(unnamed) is 2 km long, and has a stream level of 1.

Map of (unnamed)

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(unnamed) has 3 distributaries.

別府川 , which it joins at N 31° 44′ 12″, E 130° 38′ 14″ at OSM node n743002565, and 153 km of total upstream flows in.
網掛川 , which it joins at N 31° 44′ 38″, E 130° 39′ 25″ at OSM node n743017521, and 47 km of total upstream flows in.
湯之谷川 , which it joins at the following points: 4 km of total upstream flows in at N 31° 44′ 46″, E 130° 38′ 59″ at OSM node n742976767. 3 km of total upstream flows in at N 31° 44′ 58″, E 130° 38′ 35″ at OSM node n744321093.

(unnamed) has 1 tributaries.

宇曽ノ木川, which joins it at N 31° 45′ 22″, E 130° 39′ 41″ at OSM node n743167655, and 60 m of total upstream flows in.