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川沙县位于长江南侧,东临长江出海段,西靠黄浦江,南与南汇、上海两县接壤。东南端水域为长江与东海的汇合处。县境经纬度,北纬31°08′20″至31°23′22″,东经121°27′18″至121°48′43″。地域呈三角形,由吴淞口向东南展开,三面环水,有岸线59.73公里(其中海岸线46.43公里,江岸13.3公里)。全境面积446.11平方里,耕地面积20490.8公倾。共有大小河道9443条
Chuansha County is located on the south side of the Yangtze River, east of the Yangtze River to the sea, west of the Huangpu River, south and Nanhui, Shanghai bordering the two counties. Southeast waters of the Yangtze River and East China Sea confluence. The longitude and latitude of the county range from 31 ° 08’20 “to 31 ° 23’22” north and 121 ° 27’18 “to 121 ° 48’43” east longitude. Triangle region, starting from the Wusongkou southeast, surrounded by water, there are 59.73 km of shoreline (of which 46.43 km of coastline, 13.3 km river bank). The whole area of 446.11 square miles, 20490.8 hectares of arable land. A total of 9443 the size of the river