Yinan county, which belongs to Linyi City, Shandong Province, is located in the middle of Shandong Province, adjacent to Juxian County in the east, Mengyin in the west, the urban area in the south and Yishui in the north. Between north latitude 3518' 26 "and east longitude 35 46'15", east longitude1/8 6' 36 "-18 43' 3/kloc-. Administer 14 townships, 1 street, 1 provincial economic development zones.

Yinan, the ancient capital of Langya, is the birthplace and ancestral home of Zhuge Liang and Yan Zhenqing. There are many cultural relics and cultural landscapes in China, and there are nearly 100 historical sites in Han Dynasty, which is known as "Qilu Dunhuang". History: "Yang Du in the upper reaches of Linyi is a legend in the south of the Yangtze River."

By the end of 20021,the total population of yinan county was 980,000. In 20021year, yinan county achieved a regional GDP of 26.474 billion yuan, of which the added value of the primary industry was 5.259 billion yuan, the added value of the secondary industry was 9.865438 billion yuan, the added value of the tertiary industry was 6.5438+01406 billion yuan, and the added value of the tertiary industry accounted for 6.5438+09.86: 37.

In the 28th year of the Republic of China (1939), the South Yimeng Joint Defense Institute was established, covering the south of Hongshan, the southwest of Beishe Village, Yaodianzi Town, Yishui County, and the west of Wenjiaguanzhuang, Sucun Town.

The area between the northwest of Xijiashao Village in Tingshui Town, Ju 'nan County, the north of Dadingzi in Shuanghou Town, the northeast of Yandian Village in Duozhuang Town, Mengyin County, the east of Taipingding at the junction of xintai city and Pingyi County, and the southeast of Jiguanzhuang in Mengyin Town, Mengyin County.

From June 1940 (in the 29th year of the Republic of China) to June 1942 (in the 31st year of the Republic of China), Linfeilian County, Feidong County and Yidong County were established one after another, and their territory changed greatly. By the end of 1944, the jurisdiction of yinan county included the south of Qingyanghang Village in Wen Yi Town and the southwest of Shilangtou Village in Hu Jie Town.

The area between the west of Bulan Village in Dazhuang Town, the northwest of Dazhuang Village, the north of Luoquanya Village in Songzu Town, the northeast of Shuanghou Village in Shuanghou Town, the east of Douxing Village in Xu Tao Town of Mengyin County, and the southeast of Jiguanzhuang in Mengyin Town of Mengyin County. The maximum vertical distance is 33.6 kilometers, the maximum horizontal distance is 46.2 kilometers, and the total area is 980 square kilometers.