Jiayuguan Fort of Great Wall, the western terminus of the Ming Great Wall, stands 5 km west of Jiayuguan City, Gansu. Built in 1372, it's hailed as the "First Grand Pass Under Heaven"and lies at the narrowest corridor of Hexi, a strategic military gateway on the ancient Silk Road. 

Surrounded by snow-capped Qilian Mountains and boundless Gobi desert, this rammed‑earth fortress is the best‑preserved and grandest Great Wall stronghold of complete ancient defense layouts. Its intricate defense system includes inner/outer cities, a barbican, and a moat.

As a UNESCO World Heritage Site, it guarded the ancient Silk Road, where caravans and envoys traveling between East and West. Against golden dunes and snow‑capped peaks, it blends magnificent rugged desert beauty with profound 600‑year military legacy, a timeless symbol of China's northwest frontier might.