小石川

小石川 is 8 km long, and has a stream level of 0.

Map of 小石川

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小石川 flows into the sea: 19 km flows in at N 36° 41′ 6″, E 140° 42′ 56″ at OSM node n758529879.

小石川 has 2 tributaries.

桜川, which joins it at N 36° 40′ 59″, E 140° 41′ 4″ at OSM node n758195258, and 10 km of total upstream flows in.

(unnamed), which joins it at N 36° 40′ 59″, E 140° 40′ 0″ at OSM node n758321340, and 2 km of total upstream flows in.