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.
Sanmenxia, a prefecture-level city under the jurisdiction of Henan Province, is located in the south golden triangle of the Yellow River at the junction of Henan, Shanxi and Shaanxi provinces. the landform is mainly mountains, hills and loess plateaus, belonging to a warm temperate continental monsoon semi-arid climate, with a total area of 10496 square kilometers. it has jurisdiction over 2 districts, 2 counties and 2 county-level cities, with a total population of 2.308 million in 2018. Sanmenxia is known as "five mountains, four ridges and one division of Sichuan", with Guanzhong in the west, Sanjin in the north and the Central Plains in the east. Longhai Railway, Lianhuo Expressway, National Highway 310, Zheng (Zhou) West ('an) High-speed Railway running from east to west, 209 National Highway, San (Menxia) Li (Sichuan) Expressway and Haoji Railway connect the north and south. It is a regional transportation hub city that connects Henan, Shanxi and Shaanxi provinces, north to south, west to east. At the same time, Yangshao culture, Taoist culture and Guo culture are all