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.
Baijiantan District is the municipal district of Karamay City, Xinjiang, 30 kilometers northeast of the city. In 1956, when the oil workers explored here, they saw that there was a vast expanse of saline and alkali everywhere, hence the name. Baijiantan area is located in the northwest margin of Junggar Basin, bordering Tori County in the north, Buxel County in the south, Karamay District in the southwest and Wuerhe District in the northeast, with a total area of 1272 square kilometers. Most of the landforms are Gobi (desert), which is located in the typical continental climate zone of mid-temperate zone. In 2016, the local GDP of Baijiantan District was 2.12 billion yuan. Of this total, the added value of the primary industry was 60 million yuan, the secondary industry was 910 million yuan, and the tertiary industry was 1.15 billion yuan. By the end of 2017, Baijiantan District had jurisdiction over two streets and one town, with a total of 20 community neighborhood committees and 5 administrations.