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.
Yangqu County, historically known as "Sanjin Shouyi", belongs to Taiyuan City, Shanxi Province, which is located in the backbone of Xinzhou and Jinzhong basin. Jiaojin key point, Taiyuan gate. The east, west and north are surrounded by mountains, while the south is low and flat. It is bordered by Yu County in the east, Jingle County and Gujiao City in the west, Taiyuan City in the south, Xinzhou City in the north, Dingxiang County in the northeast and Shouyang County in the southeast. Jingbei mountain system stretches from east to west, and Yunzhong mountain system runs through the north and south, because of the north barrier, which is known as the north gate of Taiyuan, which is a necessary place for soldiers. Yangqu County has 579 cultural relics protection units (including 5 at the national level, 4 at the provincial level and 24 at the municipal level). In 2007, together with Pingyao, Dunhuang, Dali and other historical and cultural places, it was selected as the "66 major counties of Chinese cultural tourism in a lifetime". Yangqu has a dense road network, 108 National Highway.