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.
Hualong Hui Autonomous County is located in the transitional zone between the Loess Plateau and the Qinghai-Tibet Plateau in the east of Qinghai Province and in the south of Haidong City. Is a Hui-based multi-ethnic county, a total of Hui, Han, Tibetan, Salar and other 12 ethnic groups. The county people's government is stationed in Bayan Town, 75 kilometers away from the provincial government. Linping Highway, Lehua Highway, Asai Highway, Zaha Highway, Ping-An Expressway and Yanguan Highway run through the county. Hualong Hui Autonomous County has a total area of 2740 square kilometers and has jurisdiction over 3 towns and 18 townships. As of 2010, the total population is 229669. Located in the mountains and valleys on the north side of the Yellow River valley, the terrain tilts from northwest to southeast, and the Yellow River flows through the southwest and south of the county. It belongs to the eastern arid area of the Qinghai-Tibet Plateau, with an average annual temperature of 2.2 ℃ and annual precipitation of 470mm.