China Historical GIS, Harvard University and Fudan University CC BY-NC 4.0 http://tgaz.fudan.edu.cn/tgaz/placename/hvd_95013 平城縣 平城县 Pingcheng Xian 县 縣 xian county -221 4 13 3 POINT point N 40.10574 E 113.30753 95014 今山西大同市北门外 雁门郡 Yanmen Jun 雁门郡 Yanmen Jun CHGIS