Yumen Pass, or Jade Gate, lies about 80 km northwest of Dunhuang, a legendary Han‑dynasty frontier pass and UNESCO World Heritage Site. Built around 111 BC under Emperor Wu, it guarded the northern Silk Road, where caravans once transported precious jade from Hotan to central China—hence its poetic name.

Also known as Xiaofangpan City, its square rammed‑earth walls still stand amid the vast Gobi, with ruins of beacon towers and the Great Wall stretching into the distance. Famous for the Tang poem line "Beyond Yumen Pass, spring never comes," it evokes ancient frontier solitude. A silent witness to Silk Road glory, Yumen Pass blends raw desert beauty with profound history, a must‑visit for tracing China's western frontier legacy.