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.
Angren County, which belongs to Xigaze City, is located in the north-west of Xigaze, the upper reaches of the Brahmaputra River, on the middle ridge of the Gangdise Mountains, between 87.14 °- 87.75 °east longitude and 29.17 °- 31 °north latitude. It is bordered by Xietongmen County and Lazi County to the east, Cuoqin County and Saga County to the west, Nie Lamu and Dingri County to the south, and Shenza County to the north. La (Zi) Pu (Lanzhou) Highway (National Highway 219) runs through the southern part of the border. The county has an average elevation of 4513 meters, with a total area of 39600 square kilometers, accounting for 21.78% of the total area of Xigaze City. In 2010, the GNP of Angren County reached 396.12 million yuan, an increase of 13.5 percent over 2009, and the per capita GDP reached 7682 yuan, an increase of 10 percent over 2009. In 2013, Anren County had jurisdiction over two towns,