Mèngbān
Mengban lies southwest of Weiyuan, near the Lancang River in the forested mountains of southern Yunnan. A Tai name recorded for the place, Bantala Di, describes a round basin, set among the higher ground. It belongs to the wider country once known as Mengwo, a name recalling the salt wells of the Weiyuan district. The river runs through the mountain country to the west, while the smaller basins provide places for settlement among its steep valleys.