Originally known as Small Square City, the Great Wall Yumenguan Pass, together with Yangguan Pass, is one of the two important passes on the western frontier of the Han Dynasty (206 BC - 220) lands. It is located 56 miles northwest to Dunhuang City, Gansu Province, at the western end of Hexi Corridor. In ancient times, it was the crucial gateway from central China to the western regions.
In the early Han Dynasty, the Huns ceaselessly invaded the Han's area. At first, the weak Han rulers attempted to marry the daughters of imperial families to the Huns' leaders, in hope of gaining temporary peace. When Emperor Wu rose to power, he immediately gave up this cowardly policy by launching fierce counterattacks on a large scale. Finally, the Hun's troops were driven back. In order to strengthen the stability of the western frontier, this wise emperor ordered Yumenguan Pass and Yangguan Pass to be set up along the Hexi Corridor. Henceforth, these two passes of Great Wall, like two royal soldiers, honorably began to guard the western gate for their motherland.
In the past, the beautiful jade was transported to the inner China through this pass via the Silk Road, which gave the pass its name, Yumenguan, or "Jade-Gate Pass" in English. At that time, Yumenguan Pass served mainly as a post station for businessmen, military generals and ambassadors. It has witnessed the prosperity of business transactions along the Silk Road. The silk peculiar to inner China was transported to the western region in an endless stream. Cultural aspects of western China such as music and religion were introduced to central China at the same time. It is said that the grapes, pomegranates and walnuts now growing in central China were originally from the western area.
Two thousand years later, the light ringing sound of busy camel trains has disappeared. The cry of sellers in the markets is completely gone. Yumenguan Pass of Great Wall has lost its historic function. It is only a rectangular castle standing in the Gobi desert. It covers an area of over 232 square miles, measuring 27 yards long, 29 yards wide and 32 feet high. The pass was built of rammed yellow earth and has two gates - the west gate and the north gate. There is a walkway measuring 1.4 yards wide on the top. Nuqiang (a jagged parapet on the wall) was set there too. In the southeast corner lies the "Ma Dao" (Horse Ramp), by which people and horses could gain access to the top of the wall.
Climbing to the top of the pass, you can see the relics of the Great Wall and beacon towers scattered sparsely in the desert, creating an atmosphere of recalling the past.