China Historical GIS, Harvard University and Fudan University CC BY-NC 4.0 https://maps.cga.harvard.edu/tgaz/placename/hvd_87826 澶州 澶州 Chan Zhou 州 州 zhou prefecture 772 4 937 4 POINT point N 35.89282 E 115.09803 FROM_FD 唐 Tang 后梁 Houliang 后唐 Houtang 后唐 Houtang CHGIS