abstract:Linqu County () is a county located in the southwest of Weifang and the middle of Shandong Peninsula, Shandong Province, China. It covers an area of 1,834 square kilometers and governs 937 villages which were grouped into eight townships and two subdistricts .
Many mountains in Changlecounty which were composedof basaltsin NiushanandYaoshan formation of Linqugroup in New Neogene period are mainly Neo-volcanic craters.