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Dallas (/ˈdæləs/) is the third largest city in Texas and the largest city in the Dallas–Fort Worth metroplex, the fourth-largest metropolitan area in the United States at 7.5 million people. It is the largest city in and seat of Dallas County with portions extending into Collin, Denton, Kaufman and Rockwall counties. With a 2020 census population of 1,304,379, it is the ninth most-populous city in the U.S. and the third-largest in Texas after Houston and San Antonio. Located in the North Texas region, the city of Dallas is the main core of the largest metropolitan area in the southern United States and the largest inland metropolitan area in the U.S. that lacks any navigable link to the sea.[a]

The cities of Dallas and nearby Fort Worth were initially developed due to the construction of major railroad lines through the area allowing access to cotton, cattle and later oil in North and East Texas. The construction of the Interstate Highway System reinforced Dallas's prominence as a transportation hub, with four major interstate highways converging in the city and a fifth interstate loop around it. Dallas then developed as a strong industrial and financial center and a major inland port, due to the convergence of major railroad lines, interstate highways and the construction of Dallas/Fort Worth International Airport, one of the largest and busiest airports in the world. In addition, Dallas has DART (Dallas Area Rapid Transit) with different colored train lines that transport throughout the Metroplex.

Dominant sectors of its diverse economy include defense, financial services, information technology, telecommunications, and transportation. The Dallas–Fort Worth metroplex hosts 23 Fortune 500 companies, the second most in Texas and fourth most in the United States, and 11 of those companies are located within Dallas city limits. Over 41 colleges and universities are located within its metropolitan area, which is the most of any metropolitan area in Texas. The city has a population from a myriad of ethnic and religious backgrounds and one of the largest LGBT communities in the U.S. WalletHub named Dallas the fifth most diverse city in the United States in 2018.

Qingtongxia City belongs to Wuzhong City, Ningxia Hui Autonomous region. It is located in the upper reaches of the Yellow River, in the middle of Ningxia Plain, between 105 °21'E longitude and 106 °21'E and 37 °36'N latitude to 38 °15'N. The Yellow River faces Lingwu City and Litong District of Wuzhong City in the east, Zhongning County, Zhongwei City in the south, Alashan Zuo Banner in Inner Mongolia Autonomous region in the west, and Yongning County in the north. Qingtongxia is 30 kilometers away from Litong District, where Wuzhong City is based, and 54 kilometers away from Yinchuan, the capital of the autonomous region. The city is more than 30 kilometers wide from east to west and more than 60 kilometers from north to south, with a total area of 2445 square kilometers. The total population is 283842 (2016). The government is stationed in Xiaoba town. In July 2003, the town was evacuated and the location of the municipal people's government was renamed Yumin Street.
Travel Notes In Qingtongxia City
Qingtongxia Grand Canyon, Zhongwei Shapotou 2-day tour
v After the four-day tour in Yinchuan City, I took a car directly to Qingtongxia Town on the afternoon of May 18th. The whole sky was gray that day, a
Go to Ningxia for a meeting
I didn't expect to go to Qingtongxia for a meeting. This business trip is also a temporary extra task. I don't have much hope. If I want to travel on
Have you seen one tower, two towers, three towers, have you seen a group of one hundred and eight towers?
China is so big, I want to visit it. Take you to a place you have been or have not been to. Have you seen one tower, two towers, three towers, have yo
Ningxia September tour beyond expectations
The majestic Helan Mountain, the rolling Yellow River, meanders the Great Wall of Ming Dynasty. The desert is connected to the lake, and the ancient