Yang Pass, Dunhuang, Gansu 甘肃敦煌阳关
Yang Pass, southwest of Dunhuang, Gansu, was set up under Emperor Wu of Han and named for lying south of Yumen Pass; it guarded the southern route to the west, and the two were known together as the Two Passes. Wang Wei’s line “West of Yang Pass you will find no old friends” and the qin piece “Three Refrains at Yang Pass” made it a byword for parting.
