Phoenix (/ˈfiːnɪks/ FEE-niks; Navajo: Hoozdo; Spanish: Fénix or Fínix,[citation needed] Walapai: Banyà:nyuwá) is the capital and most populous city of the U.S. state
of Arizona, with 1,608,139 residents as of 2020. It is the fifth-most populous city in the United States, and the only U.S. state capital with a population of more than one million residents.
Phoenix is the anchor of the Phoenix metropolitan area, also known as the Valley of the Sun, which in turn is part of the Salt River Valley. The metropolitan area is the 11th largest by population in the United States, with approximately 4.85 million people as of 2020. Phoenix, the seat of Maricopa County, has the largest area of all cities in Arizona, with an area of 517.9 square miles (1,341 km2), and is also the 11th largest city by area in the United States. It is the largest metropolitan area, both by population and size, of the Arizona Sun Corridor megaregion.
Liangzhou District, known as Gudu and Xiutu in ancient times, is located in the longitude of 101 °59 and the latitude of 37 °23 and 38 °12, respectively. It is located in the northwest of Gansu Province, the eastern end of Hexi Corridor, the northern foot of Qilian Mountain and the middle of Wuwei City, with an average elevation of 1632 meters. Liangzhou District belongs to Wuwei City, Gansu Province, bordering Inner Mongolia Autonomous region to the east, Sunan Yugu Autonomous County to the west, Tianzhu Tibetan Autonomous County and Gulang County to the south, and Yongchang County and Minqin County to the north. As of 2014, Liangzhou District has a total area of 5081 square kilometers, living in Han, Hui, Tibetan, Manchu and other 25 ethnic groups, with a total population of 1.0225 million (2012). In 2018, the district has jurisdiction over 37 towns, 2 headquarters and 8 urban subdistrict offices. Liangzhou District has a temperate continental arid climate, 20