Shangrao city. Lead Mountain County is a county under the jurisdiction of Shangrao City, Jiangxi Province, People's Republic of China (PRC). It is located in the northeast of Jiangxi Province and the south of Shangrao City, with a total area of 2 178 square kilometers. Lead Mountain County is a county under the jurisdiction of Shangrao City, Jiangxi Province, People's Republic of China (PRC). It is located in the northeast of Jiangxi Province and the south of Shangrao City, with a total area of 2 178 square kilometers. By the end of 20021,the permanent population of Yanshan county was 38245 1. Yanshan county is a famous historical and cultural city. There was human labor in the Shang and Zhou Dynasties. In the Spring and Autumn Period, Gou Jian was the King of Yue in Huiji, and also led Ou Yue and Min Yue, and the lead mountain belonged to Min Yue. In the 29th year of Yuan Dynasty (1292), the place names of Qianshan Mountain came into being. 1949 in may, Yanshan county people's government was established. As of June 365438+1October 3 1 in 2022, Yanshan county has jurisdiction over 8 towns and 9 townships. Administrative Center Building of Hekou Town People's Government of Yanshan County.