China Historical GIS, Harvard University and Fudan University CC BY-NC 4.0 http://tgaz.fudan.edu.cn/tgaz/placename/hvd_70473 沙州衛 沙州卫 Shazhou Wei 卫 衛 wei military garrison 1725 4 1759 6 POINT point N 40.14053 E 94.65088 FROM_FD 今甘肃敦煌县 安西直隶厅 Anxizhiliting CHGIS