• Tucson
  • Bayi District

Tucson (/ˈtuːsɒn, tuːˈsɒn/; Spanish: Tucson, O'odham: Cuk-Ṣon) is a city in and the county seat of Pima County, Arizona, United States, and is home to the University of Arizona. It is the second largest city in Arizona behind Phoenix, with a population of 542,629 in the 2020 United States census, while the population of the entire Tucson metropolitan statistical area (MSA) is 1,043,433. The Tucson MSA forms part of the larger Tucson-Nogales combined statistical area (CSA). Both Tucson and Phoenix anchor the Arizona Sun Corridor. The city is 108 miles (174 km) southeast of Phoenix and 60 mi (97 km) north of the U.S.–Mexico border. Tucson is the 34th largest city and the 53rd largest metropolitan area in the United States (2014).

Major incorporated suburbs of Tucson include Oro Valley and Marana northwest of the city, Sahuarita south of the city, and South Tucson in an enclave south of downtown. Communities in the vicinity of Tucson (some within or overlapping the city limits) include Casas Adobes, Catalina Foothills, Flowing Wells, Midvale Park, Tanque Verde, Tortolita, and Vail. Towns outside the Tucson metro area include Benson to the southeast, Catalina and Oracle to the north, and Green Valley to the south.

Tucson was founded as a military fort by the Spanish when Hugo O'Conor authorized the construction of Presidio San Agustín del Tucsón in 1775. It was included in the state of Sonora after Mexico gained independence from the Spanish Empire in 1821. In 1853, the United States acquired a 29,670 square miles (76,840 km2) region of present-day southern Arizona and southwestern New Mexico from Mexico under the Gadsden Purchase. Tucson served as the capital of the Arizona Territory from 1867 to 1877. Tucson was Arizona's largest city by population during the territorial period and early statehood, until it was surpassed by Phoenix by 1920. Nevertheless, population growth remained strong during the late 20th century. In 2017, Tucson was the first American city to be designated a "City of Gastronomy" by UNESCO.

Bayi District, which belongs to Linzhi City, Tibet Autonomous region, is located in the southeast of China's Tibet and at the southeast foot of the Nianqing Tanggula Mountains. Yarlung Zangbo meets the Niyang River here. It is the lowest elevation area of the Qinghai-Tibet Plateau and is known as "Jiangnan of Tibet". Bayi District covers an area of 10238 square kilometers, with a cultivated land area of 38000 mu, a grassland area of 565000 mu and a forest area of 5.02 million mu. The average elevation of Bayi District is 3000 meters above sea level, with a relative height difference of 2200-4700 meters. It is located at the peak of Garabaili at the junction of Bayi and Milin, with an elevation of 7294 meters. Plants grow from the subtropical zone to the cold zone, known as the "green treasure house". In 2014, the GDP of Bayi District (formerly Linzhi County) reached 4.555 billion yuan, and the financial revenue broke through the 100 million yuan mark for the first time, reaching 1.2 million yuan.
Travel Sights In Bayi District
Travel Notes In Bayi District
Travel Asks In Bayi District
Travel Asks In Bayi District