Gangu
Gangu County
County in Gansu, China
Gangu County (Chinese: 甘谷县; pinyin: Gāngǔ Xiàn) is a county in the southeast of Gansu province, China. It is under the administration of Tianshui City and is the most populous county in Gansu.[2] Its postal code is 741200, and in 1999 its population was 570,318 people.[3]
It was established by Duke Wu of Qin in 688 BC as Ji County (冀县), this has led it to be called the 'oldest Chinese county.[4][5] Gangu was a stop on the Silk Road, as a tea and horse market, and as a stopover for traders. It remains a regional trading centre.[1]
Between 1958 and 1962, Gangu and Wushan County were merged.[6]