Area of Son La hydropower reservoir located on the territory of Quynh Chew, Thuan Chau, Muong La (Son La); Muong Lay Town (Dien Bien); Sin Ho district (Lai Chau province). There conveniently located on Highway 279, Highway 6B, connecting Highway 6, Highway 32 through the provincial road 106, Provincial Road 109. There is fresh air system with large water surface, the island, peninsula, slot wetlands, the diverse ethnic culture, prominent landmarks, creating conditions for tourism development.