China Historical GIS, Harvard University and Fudan University CC BY-NC 4.0 http://tgaz.fudan.edu.cn/tgaz/placename/hvd_87907 易陽縣 易阳县 Yiyang Xian 县 縣 xian county 0 0 585 4 POINT point N 36.79036 E 114.48263 FROM_AC 今河北永年县驻地临洺关镇 武安郡 Wuan Jun 易阳县 Yiyang Xian 易阳县 Yiyang Xian 易阳县 Yiyang Xian 易阳县 Yiyang Xian CHGIS