[1][2][4] The name Kuji is thought to be derived from the phonetically similar word for whale (kujira in Japanese).

In 2006 it had the second largest catch of ayu in Japan after the Naka River, which is also located in Ibaraki Prefecture.

[1][6] A fishing weir (梁 yana) for tourists is installed along the river in Daigo.

[1][8] One midwinter phenomenon is called shiga [ja], in which frazil ice that is formed at the bottom floats to the surface.

[9][10] Distribution of freshwater fish like salvelinus and masu salmon captured in Fukushima Prefecture was restricted after the Fukushima Daiichi nuclear disaster in 2011, though restrictions on Kuji River fish has been gradually removed.