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.
Yunlian County, which belongs to Yibin City, Sichuan Province, is located in the southern margin of Sichuan Basin, the junction of Sichuan and Yunnan at the northern foot of the Yunnan-Guizhou Plateau, bordering Yunnan Yanjin, Yiliang and Weixin, and adjacent to Gao County and Gong County. Yunlian County is located in latitude 27 °50 °37 counties amptwitter, 28 °14 °14 °28 counties ampquotten, east longitude 104 °17 °17 counties amptwitter 104 °47 °20 counties amphibiquot; in between, the total area of the county is 1256 square kilometers. As a whole, the topography of Yunlian County is high in the south and low in the north, which is the transitional zone from Sichuan Basin to Yunnan-Guizhou Plateau. The main peak of the Great Snow Mountain in the southeast is 1777.2 meters above sea level; the Mutan River Valley in Tengda Town in the northeast is 368.5 meters above sea level, with a range of 1408.7 meters. The water system in the territory is vertical and horizontal, and there are rivers and streams all the year round.