Karasu River (Gunma)

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This article is about the river in Gunma Prefecture, Japan. For other rivers, see Karasu (disambiguation).
Karasu River
Karasu River.JPG
The Karasu River flowing through Takasaki
Native name 烏川
Country Japan
Basin features
Main source Hanamagari Mountain (Takasaki)
River mouth Tone River in Honjō, Saitama
Basin size 470 km2 (180 sq mi)
Physical characteristics
Length 61.8 km (38.4 mi)

The Karasu River (烏川 Karasu-gawa?) is a river located in Gunma Prefecture, Japan. It is a branch of the Tone River and the government of Japan classifies it as a Class 1 river. It generally flows in a south-easterly direction.

River communities[edit]

The river passes through or forms the boundary of the following communities:

Gunma Prefecture
Takasaki, Fujioka, Tamamura
Nagano Prefecture
Saitama Prefecture
Kamisato, Honjō

Scenic areas[edit]

The river runs through the Karasugawa Ravine in Takasaki, which has hiking trails for visitors to access the river.[1]


  1. ^ Karasugawa Ravine. Takasaki City. Accessed October 24, 2010.