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.
Hainan Tibetan Autonomous Prefecture is an autonomous prefecture under the jurisdiction of Qinghai Province, adjoining Haidong and Huangnan Tibetan Autonomous Prefecture in the east, Haixi Mongolian Tibetan Autonomous Prefecture in the west, and Guoluo Tibetan Autonomous Prefecture in the south. The terrain is mainly mountainous across Qinghai Lake and Haibei Tibetan Autonomous Prefecture in the north, surrounded by mountains and centered in the basin, which is a typical plateau continental climate. The state has a total area of 44500 square kilometers and has jurisdiction over five counties; the permanent population is 476300 in 2018. Hainan Tibetan Autonomous Prefecture has undulating mountains, continuous rivers, dense forests and rich tourism resources. there are mainly national scenic spots such as Qinghai Lake, Riyue Mountain, inverted River, Longyangxia Hydropower Station, Heyin Town, Shenshan Ancient Temple Saizong Temple, Fujia Ancient City, Tongde Hebei Forest Farm, Zhihai Snow Mountain and other places of interest and natural landscape. Within the territory