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.
Hejiang County, which belongs to Luzhou City, Sichuan Province, is located at the junction of Sichuan, Chongqing and Guizhou, on the southern edge of Sichuan Basin. It is adjacent to Jiangyang District, Naxi District and Lu County in the west, Jiangjin District of Chongqing City in the east, Yongchuan District in the north and Chishui City and Xishui County in Guizhou Province to the south. Hejiang County is 38.7km away from Luzhou, 260.1 km from Chengdu and 109.2 km from Chongqing. It is the first port county of the Yangtze River out of Sichuan. There are 54 km of the Yangtze River and 57 km of golden waterway of Chishui River. Hejiang County, which was founded in the second year of Yuanding in the Western Han Dynasty (115 BC), is one of the three earliest counties in the upper reaches of the Yangtze River. There are national forest parks, provincial scenic spots, Fubao tourist area, Chinese historical and cultural towns Fubao Ancient Town and Yaoba.