China Historical GIS, Harvard University and Fudan University CC BY-NC 4.0 http://tgaz.fudan.edu.cn/tgaz/placename/hvd_80277 龍尾城 龙尾城 Longwei Cheng 城 城 cheng walled town 737 3 937 2 POINT point N 25.59891 E 100.21974 FROM_FD 云南省大理市下关西洱河北岸 CHGIS