SON LA PROVINCE Square: 14174,4 km 2 . Population: 1092,7 thousands people (2010) City: Son La City. Districts: Quynh Nhai, Muong La, Thuan Chau, Phu Yen, Bac Yen, Mai Son, Song Ma, Yen Chau, Moc Chau, Sop Cop. OVERVIEW Located 320km northwest of Hanoi, Son La town is often used as a half-way overnight stop on the way to Dien Bien Phu. There is not much to remark the town except a prison built in 1908 by the French colonialists to...