China Historical GIS, Harvard University and Fudan University CC BY-NC 4.0 https://maps.cga.harvard.edu/tgaz/placename/hvd_111594 宿泗都團練觀察使 宿泗都团练观察使 Susidutuanlian Guanchashi 防镇 防鎮 fang zhen defense command 862 4 877 4 POINT point N 33.64237 E 116.97140 唐 Tang CHGIS