China Historical GIS, Harvard University and Fudan University CC BY-NC 4.0 https://maps.cga.harvard.edu/tgaz/placename/hvd_82849 偃師縣 偃师县 Yanshi Xian 县 縣 xian county 1075 4 1911 6 POINT point N 34.72062 E 112.80500 FROM_FD 河南府 Henanfu 河南府路 Henanfulu 河南府 Henan Fu CHGIS