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.
Luozha County belongs to Shannan City, Tibet Autonomous region, which means "Southern Great Cliff" in Tibetan. It is located in the south of the Tibet Autonomous region and at the southern foot of the Himalayas. The central part of the county is a grand canyon-Luozhagou, which is one of the border counties of the Tibet Autonomous region. The border line is 200 kilometers long. It is adjacent to Cuomei County and Cuona County in the southeast, Langkazi County in the northwest and the Kingdom of Bhutan to the south. In 2014, the total land area of the county was 5570.3 square kilometers. The water area is about 400 square kilometers. It is rich in water conservancy, wind and solar energy resources. The total population of the county is 20,000 (2014). It has jurisdiction over 2 towns and 5 townships. In 2012, the county's GDP reached 270.18 million yuan, 1.7 times that of 2010. Loza ("Southern Great Cliff" in Tibetan) is located south of the Himalayas.