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.
Xunhua Salar Autonomous County is located in the east of Qinghai Province, the eastern section of the Qilian Mountains, bordering Jishishan County of Gansu Province and Linxia County of Gansu Province to the east, Xiahe County of Gansu Province and Tongren County of Qinghai Province to the south, Jianzha County to the west, and Hualong Hui Autonomous County and Minhe Hui Autonomous County of Qinghai Province to the north, with a total area of 2100 square kilometers. As of 2011, there are 3 towns and 6 townships in the county with a total population of 126900. Xunhua Salar Autonomous County is located on the edge of the Qinghai-Tibet Plateau, which is high in the south and low in the north, surrounded by mountains and valleys, and the air current picks up. The annual average temperature is 8.7 ℃. With the global temperature rising in the past decade, the annual average temperature is more than 9 ℃. There is no heat in summer and no cold in winter. With an average elevation of 2200 meters, it is one of the lower elevations in Qinghai Province. Mean sea in river valley area