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.
Yanjin County is located in the north of the Yellow River and belongs to Xinxiang City, Henan Province. It is 31 kilometers away from Xinxiang city in the west, 70 kilometers away from Zhengzhou in the south, 80 kilometers away from Xinzheng International Airport, 50 kilometers east to Kaifeng and 130 kilometers north to Anyang. Yanjin County is 45.5 kilometers from north to south and 42.5 kilometers from east to west, with a total area of 886 square kilometers. The total population is 520000 (2016). Yanjin County is the national high-quality wheat production base and the main grain and cotton production base in China. The main scenic spots in the territory are the Forest Park of the Old Road of the Yellow River, the hanging place of Tang Wei Chi Jingde-Suanzao Pavilion, the tomb of King Chen Yucheng of the Taiping Heavenly Kingdom, the provincial cultural relics Wanshou Pagoda and so on. Local snacks include Yanjin fire and so on. Famous figures include Liu Zhenyun and so on. In March 2019, it was listed as the first batch of revolutionary cultural relics protection and utilization district and county list. The second batch of national farmers