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.
Shizuishan City, a prefecture-level city under the jurisdiction of Ningxia Hui Autonomous region, is located in the northernmost part of Ningxia, facing the Ordos platform to the east and the northern Yinchuan Plain to the west, with a typical temperate continental climate; it has jurisdiction over two districts and one county, with a total area of 5310 square kilometers; and the permanent population in 2017 is 803000. Shizuishan City gets its name because of the protruding mountains and rocks on both sides of the Yellow River. Shizuishan has a superior geographical location, which is located between the 100 billion ton coalfields of Ningdong and Mengxi countries. It is an important node city of Hubao Yinlan Economic Zone, Ningxia Yellow River Economic Zone and Ningmeng-Shaanxi-Wujin Economic Triangle Economic Zone. The Yellow River runs through the east and Helan Mountain in the west. The wetland area reaches 415 square kilometers. Shahu, the first batch of 5A tourist scenic spots in the country, is integrated. Shizuishan City, known as "stuffed Coal City", is famous for producing anthracite.