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.
Fengtai County, which belongs to Huainan City, Anhui Province, is located in the middle reaches of Huaihe River, the southern edge of Huaibei Plain, Mengcheng County of Bozhou City in the north, Lixin County of Bozhou City in the northwest, Yingshang County of Fuyang City in the west, Shou County of Huainan City in the south and Shou County of Huainan City in the east. The county is oblique to the southeast and northwest, with a length of 50 kilometers from north to south, 42 kilometers from east to west, and an area of 1100 square kilometers. Fengtai County, with coal and electricity as the pillar industry, is the largest county in deep well coal mining in China. It has been awarded the honorary titles such as the advanced county of national scientific and technological progress, the advanced county of national grain production, the advanced county of national water conservancy, the hometown of Chinese folk art, the hometown of Chinese folk song and dance, the advanced county of national legal publicity and education, the national garden county, the national civilized county and so on.