Yangguan is the throat of ancient land transportation in China and the only way of the Southern Silk Road. Located near the antique beach in the southwest of Dunhuang City, Gansu Province. The Western Han Dynasty set off Guan, which was named after it was in the south of Yumenguan. Yumenguan and Yumenguan were both gateways to the western regions at that time.
After the Song Dynasty, Guansui was abandoned because of the gradual decline of traffic and land with the West. The antique beach is named after a large number of Han cultural relics exposed on the ground, such as bronze arrows, ancient coins, stone mills and pottery cups. According to the textual research of Xiguan site, Gufengtan was called Yangguan after Han Dynasty, but according to the records of Gansu Xintongzhi and Dunhuang County Records in Qing Dynasty, Hongshankou was called Yangguan.