The Hexi Corridor is a long and narrow corridor west of the Yellow River. The snow peaks of Qilian are the bones and the Gobi desert is the skin. Starting from Wushaoling in the east and ending at Yumenguan in the west, the ancient road, which is more than a thousand miles long, was filled with the neighing of Huo Qubing's cavalry, the camel bells of Zhang Qian's mission, and the bones of garrison soldiers and the homesickness of businessmen and travelers. The beacons of the Han Dynasty still stand in the wind and sand. The old shadows of the four counties and two passes and the lingering charm of the Silk Road civilization have been repeatedly engraved in this vast world by thousands of years of wind.
