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.
Qihe County, which belongs to Dezhou City, is located in the western part of Shandong Province, with Jinan, the provincial capital to the east, Beijing, Tianjin and Tang to the north, and Nanjing, Shanghai and Hangzhou to the south. With Qihe River as the center, there are Qingdao, Jinan, Taiyuan, Zhengzhou, Shijiazhuang, Tianjin, Beijing and other big cities within a radius of 500 kilometers. Qihe River is located in the northwest plain of Shandong Province, the north bank of the Yellow River, and Jinan across the river. The county has jurisdiction over 2 townships, 11 towns and 2 subdistrict offices, with a total population of 780000 and a total area of 1411 square kilometers. It is an alluvial plain in the lower reaches of the Yellow River with fertile soil, suitable climate and sufficient light. Qihe is the most beautiful ecotourism demonstration city in China, the only new energy automobile manufacturing city in China and the equipment manufacturing city of emerging industries in China. Qihe County is also the only top 100 counties on the list of underdeveloped areas in Shandong Province, ranking among the 15th national counties.