In administrative division, which areas or counties and cities does Yimeng Mountain refer to?

Yimeng mountain area is a humanistic concept, but a specific title. The mountainous areas are only distributed in a few counties and cities, and do not represent all the mountains in this area. The mountains, hills and plains in the whole old Yimeng area account for almost one third each. For example, the three districts of Linyi City, Cangshan County, Tancheng County, Linshu County and Junan County, are almost all plain and endless. Yimeng Mountain area refers to the vast area centered on Linyi City, Rizhao City, Shandong Province and Lianyungang City, Jiangsu Province, including three districts and nine counties in Linyi City, most areas in Rizhao City, Yiyuan County in Zibo City, Linqu County in Weifang City and Jining City.