Site of Yumen Pass

Site of Yumen Pass is the most important pass set by the Han Empire from the 2nd century BC to the 3rd century AD on the west end of Hosi Corridor; located in the Gobi desert on the southern bank of the Shule River west to the Qilian Mountains, geographically, it served as a landmark dividing the east and west transport. As the best preserved and most intact ancient pass heritage of sufficiently large scale, the Site of Yumen Pass witnessed the transport management system, beacon tower system and Great Wall defense system as part of the comprehensive transport support system built by the Han Dynasty of China, and exemplified how it supported the long-distance transport and interchange along the Silk Roads.

GPS信息：
https://j.map.baidu.com/f7/4of
https://cn.bing.com/maps?osid=85204374-5d1a-42de-b127-9f9cb388d216&cp=qqs5jrrtmxyn&lvl=16&imgid=fab8185c-46b2-454c-88e9-66f442c99e82&v=2&sV=2&form=S00027

See more - http://www.silkroads.org.cn/article_1124_1.html