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.
Heyang County, known as Xinguo, is located in the northeast of Guanzhong Basin in Shaanxi Province and on the west bank of the Yellow River, belonging to Weinan City, with a total area of 1437 square kilometers and a cultivated land area of 932000 mu, with a total population of 459000 (2016) in 11 towns, 1 subdistrict office and 215 administrative villages (communities). Heyang County is a national ecological demonstration county and a national pollution-free fruit production base county with an average altitude of 721m, an annual average temperature of 11.5m and a rainfall of 553mm. It is a national ecological demonstration county and a national pollution-free fruit production base county. Wheat, apple, red grape, dairy livestock, aquatic products, sweet potatoes, pigs and other characteristic agricultural products are famous in the northwest. Heyang County is located in the forefront of the western development, 108 National Highway runs through the whole territory, Xiyu Expressway passes through 8 townships of the county and runs directly to the county seat, and Xihou Railway runs from south to north.