About Huangyuan: Huangyuan County is under the administration of Xining and is located in western Xining in northeast Qinghai Province. Dan Gar Ancient City was built during the reign of the Ming dynasty Hongwu Emperor and was an important western Chinese economic hub and a militarily strategic city. Dan Gar is also an important religious site, named after the thangka, Tibetan Buddhist cloth paintings that hang in temples. Today's Dan Gar Ancient City is full of shops, it is prosperous and lively.