China Historical GIS, Harvard University and Fudan University CC BY-NC 4.0 http://tgaz.fudan.edu.cn/tgaz/placename/hvd_115830 宋安郡 宋安郡 Songan Jun 郡 郡 jun commandery 465 3 588 3 POINT point N 31.63124 E 114.00903 东随县 Dongsui Xian 乐宁县 Lening Xian 环水县 Huanshui Xian CHGIS