- Source: Saigawa Dam (Nagano Prefecture)
Saigawa Dam (犀川ダム, Saigawa-damu) is a dam in Nagano Prefecture, Japan on the Sai River. Its lake is also known as Swan Lake (白鳥湖, Hakuchō-ko) for the swans that come every winter.
Saigawa Dam (犀川ダム, Saigawa-damu) is a dam in Nagano Prefecture, Japan on the Sai River. Its lake is also known as Swan Lake (白鳥湖, Hakuchō-ko) for the swans that come every winter.