The Sendai River (千代川, Sendai-gawa) is a river in eastern Tottori Prefecture, Japan. The Sendai is 52 kilometers (32 mi) in length and has a drainage area of 1,190 square kilometers (460 sq mi). The source of the river is in the Chūgoku Mountains. The Sendai flows north through Tottori Prefecture into the Sea of Japan. Under the it is designated a Class 1 River, and is managed by the Japanese Ministry of Land, Infrastructure, Transport and Tourism. About 200,000 people live along the course of the river. The Sendai River provides sediment to form the Tottori Sand Dunes, the largest dune system in Japan.