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.
Xihe County belongs to Longnan City, Gansu Province, located in the southeast of Gansu Province, the northern end of Longnan City, because of the ancient West and the state and the county name. In the Western Han Dynasty, he bought Wudu County in Luoyu (now Luoyu Town), Qiu Chi State in the two Jin dynasties, South Qinzhou in Luoyu in the Northern Wei Dynasty, and changed it into a state in the Western Wei Dynasty. After many changes, Minzhou was changed to Xihe Prefecture in the Southern Song Dynasty, and Xihe Prefecture became a county in the Hongwu period of the Ming Dynasty. Xihe County has jurisdiction over 16 towns and 4 townships, covering an area of 1861 square kilometers and a total population of 437633 (2015). Xihe County is located in the south of the West Qinling Mountains and the upper reaches of the Jialing River system in the Yangtze River Basin. It is a warm temperate semi-humid climate with four distinct seasons. Xihe County is known as the "precious rehabilitation zone". The natural resources are mainly represented by antimony ore, lead-zinc ore and Pinellia ternata and Zanthoxylum bungeanum.