China Historical GIS, Harvard University and Fudan University CC BY-NC 4.0 http://tgaz.fudan.edu.cn/tgaz/placename/hvd_70481 安西衛 安西卫 Anxi Wei 卫 衛 wei military garrison 1728 4 1759 6 POINT point N 40.54393 E 95.78867 FROM_AC 今甘肃酒泉市安西老城 安西直隶厅 Anxizhiliting CHGIS