Great underground wall
The so-called Underground Great Wall ( Chinese 地下 长城 , Pinyin Dìxià chángchéng ; English Underground Great Wall) - today in Yongqing County (永清县) of the district-free city of Langfang , Hebei Province , People's Republic of China - is one in time The Song Dynasty (960 to 1279), about 90 km long and extending over an area of 1,600 square kilometers, border or war tunnel system , which was part of a military defense system against the Mongolian people of the Kitan , who later became the Liao in China -Dynasty founded.
The tunnel system had been forgotten until 1948 when the water masses from a flood suddenly began to subside as they drained into the tunnel system. Since 2006, the "Underground Great Wall" has been on the list of monuments of the People's Republic of China (6-14) under the name Bianguan didao yizhi (边关 地道 遗址 "Site of the border tunnel" ) .
Web links
- 'Underground Great Wall' Open to the Public - English
- China to open 90-km long underground Great Wall soon - English
Footnotes
- ↑ http://news.163.com/06/0829/14/2PMTVAT90001124J.html ; http://theory.people.com.cn/GB/49157/49163/6603306.html ; http://www.gmw.cn/CONTENT/2007-12/03/content_705103.htm
- ↑ http://news.163.com/06/0829/14/2PMTVAT90001124J.html河北 1600 平方公里 "地下 长城" 疑为 杨家将 所 修 (图)
Coordinates: 39 ° 19 ′ 12 ″ N , 116 ° 30 ′ 0 ″ E