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.
Dazhu County, which belongs to Dazhou City, Sichuan Province, is located in the east of Sichuan Province and the south of Dazhou City. It spans 106 °59 miles east longitude and 107 degrees 32 miles north latitude, 31 °00 degrees north latitude, Liangping District and Dianjiang County of Chongqing City in the east, Linshui County in the south, Guang'an District and qu County in the west, and Dachuan District in the north. It has been included in the Qinba Mountain Poverty Alleviation and Development Zone, the Chengdu-Chongqing Economic Zone Chongqing Guangda Economic Development Zone, and the northeast Sichuan urban agglomeration. Dazhu County got its name from "more bamboo". Wu Zetian of the Tang Dynasty saw the first year (AD 700) to buy the county; known as "the hometown of Ramie in China", "the first County of Chinese Toona", "the Capital of mash in China", "the hometown of glutinous Rice in China", "the hometown of Green Bamboo in East Sichuan"; there is Wufengshan National Forest Park, and there are ancient official post roads that started in the pre-Qin Dynasty and flourished in the three Kingdoms.