The Shinano River, which runs through the Niigata Plain, and its tributary, the Nakanokuchi River, used to frighten people because they were known as rivers of rampage that caused floods almost every year.
新潟平野を流れる信濃川およびその支流である中ノ口川は、かつては毎年のように洪水を引き起こす暴れ川として恐れられて来た。