China Historical GIS, Harvard University and Fudan University CC BY-NC 4.0 http://tgaz.fudan.edu.cn/tgaz/placename/hvd_80274 龍口城 龙口城 Longkou Cheng 城 城 cheng walled town 738 2 937 2 POINT point N 25.92493 E 100.09933 FROM_FD 云南省大理市喜洲镇上关村西侧 CHGIS