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.
Jingchuan County, which belongs to Pingliang City, Gansu Province, is located at the junction of Qinlong in the middle of the Loess Plateau, longitude 107 °15 "107 °45" east, latitude 35 °11 "35 °31" north. It is bordered by Ning County and Changwu County in Shaanxi Province in the east, Chongxin County and Kongtong District in the west, Lingtai County in the south and Zhenyuan County in the north. It is 57 kilometers from east to west and 36 kilometers from north to south, with a total area of 1409.3 square kilometers (2012). With a population of 283200 (2013), the GDP of Jingchuan County reached 4.553 billion yuan in 2013. Jingchuan County, the best suitable area for high-quality apples in the country, occupies the backbone of the ancient Silk Road and is the hinterland of Chinese civilization. Since ancient times, it has been the first important town from Changan to the western region. The famous scenic spots include Huishan Queen Mother Palace, Yaochi, Queen Mother Palace Grottoes and so on.