• Tucson
  • Taibai County

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.

Taibai County is located in the southeast of Baoji City, Shaanxi Province, located in the hinterland of the Qinling Mountains, named because Taibai Mountain, the main peak of the Qinling Mountains, is in the territory. The highest elevation in the territory is 3767 meters, the lowest is 740meters, the average elevation is more than 1000 meters, and the county seat is 1543 meters above sea level, which is the highest among the counties in Shaanxi Province. With an annual average temperature of 7.7 ℃ and an average temperature of 19 ℃ in summer, it is a veritable "natural air-conditioned city" and a popular resort for snow and summer heat. "Taibai Snow June" is one of the eight famous scenic spots in Guanzhong. On December 2, 2017, Taibai County was awarded "the most beautiful cultural and eco-tourism county in China and the best eco-leisure tourism county in China". September 25, 2018, obtained the Ministry of Commerce "2018 e-commerce into rural areas comprehensive"
Travel Notes In Taibai County