The ancient city of Or is located in Wuyuan County, Qinghai Province, 40 kilometers away from Xining City. Dan Or, the Mongolian voice translation of Tibetan "Dong Ke", means "white conch". The loess plateau and the Qinghai-Tibet plateau are combined here, Tangyu Ancient Road and Silk Road are crossed here, and many ethnic groups are gathered here, known as "Haizang throat", "Tea Horse Business Capital", "Little Beijing".