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.
Menghai County, located in the southwest of Yunnan Province and the west of Xishuangbanna Dai Autonomous Prefecture, is located between 99 °56 °E and 100 °41'E and 21 °28 °M ü r 22 °28'N. It is bordered by Jinghong City to the east, Simao City to the northeast, Lancang County to the northwest and Myanmar to the west and south. The border is 146.6 kilometers long. The east-west horizontal distance is 77 km, the north-south vertical distance is 115km, with a total area of 5511 square kilometers, of which mountain area accounts for 93.45%, dam area accounts for 6.55%, the highest elevation is 2429 meters, and the lowest elevation is 535m. With a total population of 331850 (2010), the government is stationed in Menghai Town. Menghai County is the hometown of the world-famous "Pu'er tea" and the earliest place of tea production in China. It has the wild "tea tree king" of 1700 years ago.