(unnamed)

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(unnamed) flows into the sea: 8 km flows in at N 36° 19′ 36″, E 137° 52′ 27″ at OSM node n748527902. 7 km flows in at N 36° 18′ 32″, E 137° 51′ 21″ at OSM node n748009467. 6 km flows in at N 36° 19′ 55″, E 137° 52′ 19″ at OSM node n748252118. 4 km flows in at N 36° 17′ 57″, E 137° 51′ 30″ at OSM node n748463214. 4 km flows in at N 36° 17′ 43″, E 137° 51′ 5″ at OSM node n748323094.

(unnamed) has 1 tributaries.

• 烏川, which joins it at N 36° 18′ 52″, E 137° 50′ 0″ at OSM node n748633821, and 44 km of total upstream flows in.
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