• Tucson
  • Dali 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.

Dali County, which belongs to Weinan City, Shaanxi Province, is located in the eastern part of the Weibei Plain in Guanzhong, Shaanxi Province, and the confluence area of Huang, Luo and Wei Rivers. The Weihe River is adjacent to Tongguan, Huazhou District and Huayin City in the south, Linwei District and Pucheng County to the west, Chengcheng County and Heyang County to the north, and the Yellow River to the east to Yongji County in Shanxi Province. It is between 34 °36 degrees north latitude 35 °02 'and 109 °43 degrees east longitude 110 °19'. The total area is 1800 square kilometers. Dali County is one of the birthplaces of the Chinese nation. About 200000 years ago, Dali people thrived on this fertile soil. Since the Spring and Autumn period, Dali has established a state and established a government. There are 4 national cultural relics protection units, 9 provincial cultural relics protection units, Wei Great Wall site, Tang Jinlong Pagoda, Cenlou of Song Dai Temple and Qingfengtu.
Travel Notes In Dali County