Wichita (/ˈwɪtʃɪtɔː/ WITCH-ih-taw) is the largest city in the U.S. state of Kansas and the county seat of Sedgwick County. As of the 2020 census, the population of the city was 397,532. The Wichita metro area had a population of 647,610 in 2020. It is located in south-central Kansas on the Arkansas River.
Wichita began as a trading post on the Chisholm Trail in the 1860s and was incorporated as a city in 1870. It became a destination for cattle drives traveling north from Texas to Kansas railroads, earning it the nickname "Cowtown". Wyatt Earp served as a police officer in Wichita for around one year before going to Dodge City.
Qingjian County, the ancient name of Kuanzhou, is located on the west bank of the Shaanxi-Jin Canyon of the Yellow River, at the junction of Yulin and Yan'an, and at the confluence of the Wuding River and the Yellow River. It is located in the longitude of 109 °55 °27 in east longitude and 36 °57 in 30 latitude in north latitude and 37 °25 in north latitude. It is an important place to guard Yan'an and Guanzhong. It is 95 km long from east to west and 55 km wide from north to south. The area is 1881 square kilometers, accounting for 0.91% of the total land area of the province and 4.31% of the total area of Yulin City. Baoxi Railway and National Highway 210 pass through the west, and Weiqing Highway and National Highway 210 meet in the county seat. The county has jurisdiction over 9 towns. By the end of 2017, the county had a total population of 217200 and an agricultural population of 191000.