Miran fort

Miran fort aka "Ruins of Milan" is a ruined defensive structure in Miran, Xinjiang, China. The fort was active during the Tibetan Empire, in the 8th and 9th centuries AD. It is similar in structure to the fort at Mazar Tagh, which was also used by the Tibetan army in the same period. Like the Mazar Tagh site, the excavation of the fort at Miran has yielded hundreds of military documents from the 8th and 9th century, which are among the earliest surviving Tibetan manuscripts, and vital sources for understanding the early history of Tibet. ()