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.
Qishan County, which belongs to Baoji City, Shaanxi Province, is located in the west of Guanzhong along the ancient Silk Road and modern Eurasian Continental Bridge, and northeast of Baoji City. Linyou County to the north, Taibai County to the south, Fufeng and Mei County to the east, Fengxiang County and Chencang District to the west. With a total area of 856.45 square kilometers, it is a warm temperate continental monsoon semi-humid climate. Qishan County is one of the birthplaces of the Chinese nation, the birthplace of Emperor Yan and Zhou Dynasty, the birthplace of Zhou culture, and the birthplace of Huang Di Nei Jing and Zhouyi, a masterpiece of national medicine. With a long history and splendid culture, it enjoys the reputation of "hometown of bronze ware", "hometown of oracle bone inscriptions", "ancient county of thousands of years of China", "hometown of folk art", "hometown of Shaanxi cuisine" and "hometown of drum". Won "