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.
Gaolan County, which belongs to Lanzhou City, Gansu Province, is located in the central part of Gansu Province, between longitude 103 °32'- 104 °14 °E and latitude 36 °05'- 36 °51'N, with a total area of 2136 square kilometers. Gaolan County has a temperate semi-arid climate with an average annual temperature of 7.2℃. As of 2018, Gaolan County has jurisdiction over 6 towns, and the county government is stationed in Shidong Town. By the end of 2017, the total registered population of Gaolan County was 147300. In the Western Han Dynasty, it belonged to Jincheng County and first bought Jincheng County. In the third year of Qianlong in the Qing Dynasty (1738), it was renamed Gaolan County because of Gaolan Mountain. In April 1970, Gaolan County was reclassified under the jurisdiction of Lanzhou City. Gaolan County has Dongguo pear, soft pear, Bailan melon, red sand potato, black melon seeds and other specialties. Tourist attractions include Guli Garden, Shidong Temple and Ling in Shichuan Town.