上郡是战国至秦汉时期在西北地区设置的行政区划,地处要冲,辖区广阔。但由于史料的混乱和考古资料的匮乏,其治所肤施县的具体位置一直众说纷纭,无法确定。本文以榆林市文物保护研究所发起的战国秦汉城址调查结果为基础,并结合《水经注》的相关记载,认为榆林市榆阳区鱼河镇的郑家沟城址极有可能是战国时秦昭王所置肤施县故址。 On the county is the Warring States Period to Qin and Han Dynasties in the northwest region set the administrative divisions, is located in the hub, a vast area. However, due to the confusion of historical materials and the lack of archaeological materials, the specific location of the county to which it is administered has been divided into many opinions and can not be determined. Based on the survey results of the site of the Warring States and Qin and Han dynasties initiated by Yulin City Institute of Cultural Relics Protection and the related records of “Shuijingjing”, it is concluded that the site of Zhengjiagou in Yuhe Town, Yuyang District, Yulin City, Wangzhao Wangshu hometown location.