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.
Muli Tibetan Autonomous County, which belongs to Liangshan Yi Autonomous Prefecture of Sichuan Province, is located on the southwest edge of Sichuan Province, crossing the Yalong River in the east, Gongga Mountain in the west, Jinsha River in the south and Ganzi Prefecture in the north, covering an area of 13000 square kilometers. The average elevation of the county is 3100 meters, with a relative height difference of 4488 meters. Muli County is an autonomous county dominated by Tibetans, including 21 ethnic groups including Yi, Han, Mongolian and Naxi. It is one of the only two Tibetan autonomous counties in the country, with a total population of 130000 in 2013. Muli has an important water conservation forest in the upper reaches of the Yangtze River, which is one of the few primitive forest areas left in China. Muli has a high tourism taste because of its unique natural landscape and cultural customs, and has great potential to develop eco-tourism and leisure tourism. Muli has been known as the "Golden Kingdom" since ancient times.