(unnamed)

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(unnamed) flows into the sea: 2 km flows in at N 36° 40′ 43″, E 138° 57′ 56″ at OSM node n759430133.

(unnamed) has 1 tributaries.

• 境沢, which joins it at N 36° 40′ 40″, E 138° 57′ 49″ at OSM node n760116766, and 1 km of total upstream flows in.
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