Gubeikou is an ancient hidden pass near Miyun (just north of Beijing), with Panlong (Twining Dragon) Mountain in the east and Wohu (Crouching Tiger) Mountain in the west. The Chaohe River passes through it, and the Great Wall makes a turn here and continues northwestward. Viewed from a higher position, verdant trees and blooming flowers set off the Great Wall and the pass, with cooking smoke rises lazily from the houses dotted across the picturesque landscape. While retaining its historical appearance, Gubeikou also presents a modem view.