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.
Rongjiang, formerly known as Guzhou, is one of the 800 prefectures in the south of the Yangtze River, belonging to Qiandongnan Miao and Dong Autonomous Prefecture. It is located between 108 °04 east longitude and 108 °44 'east longitude and 25 °26 °28' north latitude. It is located in the center of the junction of Hunan, Guizhou and Guangxi provinces, bordering Liping County and Congjiang County in the east, Leishan County and Sandu County in the west, Jianhe County in the north and Libo County in the south. It has been known as "the lock key in southeastern Guizhou Province and the first important area in Miaojiang" since ancient times. The county has a total area of 3315.8 square kilometers and has jurisdiction over 6 towns, 13 townships and 268 administrative villages, with a total population of 350000, of which 298000 are from Dong, Miao, Shui, Yao and other ethnic minorities, accounting for 85.14% of the total population. The government is stationed in Guzhou town. With a mild climate and abundant rainfall, Rongjiang is the "priority tourism development area of Guizhou Province".