2. Lu 'an, a prefecture-level city in Anhui Province. Located in the west of Anhui Province, referred to as "Gaocheng", it is located between Jianghuai, the northern foot of Dabie Mountain and the west wing of Yangtze River Delta Economic Zone. "West Anhui" in the geographical sense refers to Lu 'an. Lu 'an is located in Jianghuai, with wuyue in the east, Jingchu in the west and the Central Plains in the north. The terrain is high in the southwest and low in the northeast, showing a trapezoidal distribution; It belongs to the transition zone from north subtropical zone to warm temperate zone, with obvious monsoon and distinct four seasons. In 20 17, the city's total area 1545 1 square kilometer, with a registered population of 5.882 million; Jurisdiction over 3 districts and 4 counties.

3. The name of Lu 'an began with Emperor Wu of Han Dynasty, taking the initials of six counties such as Hengshan, Anfeng and Anfeng. Don't call Hengshan the the country of Lu 'an, which means "Lu 'an is not chaotic". Because Shun named Lu 'an, later generations called Lu 'an Gaocheng. Lu 'an is a member city of the Yangtze River Delta urban agglomeration, which is bordered by mountains and rivers and the Huaihe River, connecting the east with the west. There are three national highways (3 12, 206, 105), four railways (Ningxi, Hejiu, Fuliu and Shanghai express railway passages) and five expressways (Shanghai-Shaanxi, Shanghai-Chengdu, Jiguang, Hefu and He 'an) running through the whole territory, only half an hour away from the newly-built Hefei Xinqiao International Airport. On February 20 18, Lu' an was identified by the Central Civilization Office as a national civilized city nominated for the creation cycle of 20 18-2020.