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.
Mianchi County, which belongs to Sanmenxia City, Henan Province, is located in the northwest of Henan Province. It is bordered by the Yellow River to the north and Yuanqu, Xiaxian and Pinglu in Shanxi Province to the north, Luoning and Yiyang to the south, Yima to the east and Xin'an to the east, and Shaanzhou District to the west. The geographical coordinates are 111 °33'E to 112 °01 °E and 34 °36'N to 35 °05'N, belonging to temperate monsoon climate. Mianchi County is 43.5km wide from east to west and 52.8km from north to south, with a total area of 1421 square kilometers and a total population of 358900 (2017). The county has jurisdiction over 5 towns and 7 townships. The county people's government is stationed in Chengguan Town, 190 kilometers away from the provincial capital Zhengzhou and 300 kilometers away from the ancient capital Xi'an. Mianchi County is a county of economic management and power expansion, a key county of opening to the outside world, and a processing and trade county in Henan Province.