A family. Zhangye, known as Ganzhou in ancient times, is a prefecture-level city under the jurisdiction of Gansu Province. Gansu Provincial People's Government approved the establishment of a tourist center city in Hexi region, an important commercial and trade circulation hub, and one of the agricultural and sideline products processing and energy bases in Gansu Province. There is a sewage treatment plant in the northeast suburb of Zhangye City, which is the second sewage treatment plant in Zhangye City. Zhangye has a beautiful environment and convenient transportation.