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.
Woyang County, which belongs to Bozhou City, Anhui Province, is located in the north of Anhui Province, in the middle of Huaibei Plain, Yongcheng City, Huaibei City, Henan Province to the north, Lixin County to the south, Qiaocheng District, Bozhou City to the west, and Mengcheng County to the east, with a total area of 2107 square kilometers. Woyang County has a superior location and convenient transportation, which is located at the junction of Anhui, Henan and Shandong provinces. Qingfu Railway runs from north to south, north to Longhai Line, east to Beijing-Shanghai Line and Nantong Jingjiu Line. Provincial Highway S307 and S202 meet Woyang County, connecting Xu Expressway in the east, Shangfu Expressway in the west, Ningluo Expressway in Nantong, and Jiqi Expressway across Woyang. The Vortex River runs from east to west and is navigable throughout the four seasons. The maximum navigation capacity of a single ship is up to 800 tons, connecting the Huaihe River into the Yangtze River. There are many cultural landscapes in the territory, including Tianjing Palace, East Taiqing Palace, Fan Li Tomb, Yilu Bridge, Ji Kang Tomb, Chen Kui lying traces, and Hongcheng.