• Louisville-Jefferson
  • ruoergai County

Louisville (/ˈluːivɪl/ (listen) LOO-ee-vil, US: /ˈluːɪvɪl/ (listen) LOO-ə-vəl, locally /ˈlʊvɪl/ (listen) LUUV-əl) is the largest city in the Commonwealth of Kentucky and the 28th most-populous city in the United States.[a] Louisville is the historical seat and, since 2003, the nominal seat of Jefferson County, on the Indiana border.

Named after King Louis XVI of France, Louisville was founded in 1778 by George Rogers Clark, making it one of the oldest cities west of the Appalachians. With nearby Falls of the Ohio as the only major obstruction to river traffic between the upper Ohio River and the Gulf of Mexico, the settlement first grew as a portage site. It was the founding city of the Louisville and Nashville Railroad, which grew into a 6,000-mile (9,700 km) system across 13 states.

Today, the city is known as the home of boxer Muhammad Ali, the Kentucky Derby, Kentucky Fried Chicken, the University of Louisville and its Cardinals, Louisville Slugger baseball bats, and three of Kentucky's six Fortune 500 companies: Humana, Kindred Healthcare, and Yum! Brands. Muhammad Ali International Airport, Louisville's main commercial airport, hosts UPS's worldwide hub.

Ruoergai County, which belongs to Aba Tibetan and Qiang Autonomous Prefecture, is located on the northeast edge of the Qinghai-Tibet Plateau, located in the north of Sichuan Province, and is the north gate of Sichuan to the northwest province. the geographical coordinates are between 102 °08'E and 103 °39'E and 32 °56'N to 34 °19'N, bordering Maqu County, Luqu County, Zhuoni County, Diebu County and Neiaba County, Hongyuan County, Songpan County and Jiuzhaigou County of Aba Prefecture, respectively. The Yellow River and the Yangtze River divide it into east and west parts. The maximum distance between east and west and north and south is about 150 kilometers. It is 475.3 kilometers away from Lanzhou, 322.4 kilometers away from Markang, the capital of the state, 469.2 kilometers south from Chengdu, and 3406 meters above sea level. Ruoergai County covers an area of 10436.58 square kilometers. At the end of 2010, Ruoergai County
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