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.
Kangle County, which belongs to Linxia Prefecture, Gansu Province, is located in the transition zone from Loess Plateau to Qinghai-Tibet Plateau, with a total area of 1083 square kilometers, with an average elevation of 2000 meters and a total area of 1083 square kilometers. It is bordered by Lintao County and Weiyuan County in Dingxi City in the east, Linxia Hui Autonomous Prefecture and Zheng County in the west, Lintan County and Zhuoni County in Gannan Tibetan Autonomous Prefecture in the south, and Guanghe County in Linxia Hui Autonomous Prefecture in the north. Kangle County has Lianhuashan National Forest Park, Yao Shuixia Forest Park, Bamboo ditch, Peony Valley, West Honeycomb Temple, Line House and other scenic spots. According to the official website in July 2019, Kangle County has a total population of 277700, including Hui, Han, Dongxiang, Baoan, Salar, Tu, Tibetan, Mongolian and Kazakh nationalities.