Chia-yü-kuan Checkpoint

        Chia-yü-kuan checkpoint is located at Chiu-chüan County, Kansu, at the western end of the Ming-era Great Wall. During the Ch'ing, the fortress remained in use as a key gateway to the west. It was repaired during the late 18th century.

        Illustration of the Gate at Chia-yü-kuan
       

        Illustration of proposed repairs to the fortifications of Chia-yü-kuan, included with a palace memorial from the official Deceng, dated to August 9, 1789.