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.
Rongjiang, formerly known as Guzhou, is one of the 800 prefectures in the south of the Yangtze River, belonging to Qiandongnan Miao and Dong Autonomous Prefecture. It is located between 108 °04 east longitude and 108 °44 'east longitude and 25 °26 °28' north latitude. It is located in the center of the junction of Hunan, Guizhou and Guangxi provinces, bordering Liping County and Congjiang County in the east, Leishan County and Sandu County in the west, Jianhe County in the north and Libo County in the south. It has been known as "the lock key in southeastern Guizhou Province and the first important area in Miaojiang" since ancient times. The county has a total area of 3315.8 square kilometers and has jurisdiction over 6 towns, 13 townships and 268 administrative villages, with a total population of 350000, of which 298000 are from Dong, Miao, Shui, Yao and other ethnic minorities, accounting for 85.14% of the total population. The government is stationed in Guzhou town. With a mild climate and abundant rainfall, Rongjiang is the "priority tourism development area of Guizhou Province".