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.
Yuanyang County is located in Xinxiang City, Henan Province, which is located in the northern plain of Henan Province, facing the Yellow River to the south and Yuhe Channel to the north, with high topography in the southwest and low in the northeast. The geomorphology belongs to the Yellow River alluvial plain. Its geographical coordinates are 113.36-114.15 degrees east longitude and 34.55-35.11 degrees north latitude. It is surrounded by Fengqiu in the east, Wuchuan and Huojia in the west, Xinxiang and Yanjin in the back, and facing Zhongmou and Zhengzhou suburbs in the south. It has a long history, splendid culture and Wuhua Tianbao. the greatness of a man lends glory to a place. The county has jurisdiction over 4 towns, 8 townships and 2 offices (its Central Plains Wu Town, Qiaobei Township, Zhulou Township and Longyuan subdistrict offices entrust Xinxiang Plain New District Management Committee to manage), with a total population of 620000 (2016) and a total area of 1022 square kilometers. Yuanyang, known as Bolangsha in ancient times, is famous for Zhang Liang's stabbing of Qin here. Since Qin