Muang Lang

Muang Lang lies among the high valleys near Xam Neua and the Nam Sam, a river that runs east to join the Mã in Vietnam. Tai and other peoples cultivated the valleys and slopes of Houaphan, where several upland principalities shared the mountainous country. Lao chronicles associated these lands with Lan Xang, while Vietnamese influence also reached the borderlands, particularly in the late eighteenth century.