Niikappu River (新冠川, Niikappu-gawa) is a river in Hokkaidō, Japan. The Niikappu River flows south to southwest from Mount Poroshiri[1] in the Hidaka Mountains. The river flows through four dams, including Niikappu Dam and Okuniikappu Dam. Both dams are owned by the Hokkaido Electric Power Company, Inc.[2] The dams form Lake Niikappu and Lake Poroshiri, respectively. After 80 kilometres (50 mi),[3] the river empties into the Pacific Ocean.[4] | ||||||
Source: Mount Poroshiri | ||||||
Mouth: Pacific Ocean | ||||||
Length: 80 km (50 mi) | ||||||