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.
Zhenyuan County belongs to Qiandongnan Miao and Dong Autonomous Prefecture, Guizhou Province, 190 kilometers away from Kaili City, the capital of Guizhou Province, located in the Wuling Mountain area in the east of Guizhou Province, is a slope zone of transition from Guizhou Plateau to Xiangxi hills, Xinhuang, Hunan, bordering Sansui and Jianhe to the south, Shiqian, Tongren City to the north, is the east gate of Guizhou Province, known as "the lock key of Yunnan and Chu, the gateway to eastern Guizhou". It belongs to the humid climate zone of the middle subtropics, with an annual average temperature of 16.6 ℃, a frost-free period of 292 days, an annual precipitation of 1057 mm, and annual sunshine hours of 1200 hours. Zhenyuan County has a total area of 1878 square kilometers and has jurisdiction over 12 townships (towns), 110 administrative villages, 5 communities and 4 neighborhood committees, with a total population of 259000, of which 99000 are from 22 ethnic minorities, including Miao, Dong and Tujia, accounting for the total.