The Kansas City metropolitan area is a bi-state metropolitan area anchored by Kansas City, Missouri. Its 14 counties straddle the border between the U.S. states of Missouri (9 counties) and Kansas (5 counties). With 8,472 square miles (21,940 km2) and a population of more than 2.2 million people, it is the second-largest metropolitan area centered in Missouri (after Greater St. Louis) and is the largest metropolitan area in Kansas, though Wichita is the largest metropolitan area centered in Kansas. Alongside Kansas City, Missouri, these are the suburbs with populations above 100,000: Overland Park, Kansas; Kansas City, Kansas; Olathe, Kansas; Independence, Missouri; and Lee's Summit, Missouri.
Huoshan County, which belongs to Lu'an City, Anhui Province, is located in the west of Anhui Province, the hinterland of the Dabie Mountains and the upper reaches of the Huaihe River, a first-class tributary of the Huaihe River. The total area is 2043 square kilometers. Han Yuan Feng five years (106 years ago) home county, the Sui Dynasty known as Huoshan County. On the whole, it is a mountain landform, and the terrain is inclined from southeast to northwest. It belongs to the north subtropical humid monsoon climate zone. By 2018, Huoshan County had jurisdiction over 13 towns and 3 townships, and there were 2 functional areas with a registered population of 362595, with a regional gross domestic product (GDP) of 17.669 billion yuan, of which: the added value of the primary industry was 1.573 billion yuan, the secondary industry was 9.577 billion yuan, the tertiary industry was 6.519 billion yuan, and the tertiary industrial structure was 8.9, 54.2, 36.9.