Gubeikou
Gubeikou is a town of Miyun District in northeastern Beijing, bordering with Luanping County, Hebei to the north and the Beijing towns of Gaoling to the west, Xinchengzi to the east and Taishitun. The area is one of the important passes of the Great Wall of China, serving as an ancient chokepoint for travelers between the Northeast and Beijing., it had 4 residential communities and 9 villages under its administration.