Yimeng Mountain Area refers to the vast area centered on Linyi City of Shandong Province, including the three districts and nine counties of Linyi City, the vast majority of Rizhao City, Wuyuan County of Zibo City, Linyi County of Weifang City, Lishui County of Jining City, Zaozhuang City. Part of the area, part of the county of Lianyungang in Jiangsu Province, etc. Yimeng Mountain is just a specific title. The mountainous area is only distributed in several counties and cities. It is not that all the mountains in the area are mountains. The entire mountainous area, hills and plains of Yimeng District account for about one-third. . Yimeng Mountain is not a single mountain, but the general name of the Lushan Mountain and the Mengshan Mountains. Most of the Yimeng Mountain System is in Linyi City.