镇康 (Zhenkang) county is in the north-west part of the Lincang administrative region of Yunnan. It is a border region, where the border town is called Nansan (南伞).
Residents from both sides of the border can cross border very easily. Infact, there are cave tunnels whereby the international border could be crossed. Many children from the Myammar cross the border to study on the China side.
The prominent ethnic group of this area area are the De’ang (德昂) people. The road network is still poor in this part, and thus a drive of 70km to a De’ang village took more than 3 hours.