• Tucson
  • Markam 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.

Mangkang County is located in the southeast of Tibet Autonomous region, the easternmost part of Changdu City, and at the confluence of Sichuan, Yunnan and Tibet provinces. It is located between 98 °00mm east longitude 99 °05m, 28o 37m m / m 30o 20' north. It is bordered by Batang County in Sichuan Province in the east, Deqin County in Yunnan Province in the south, Zuogong County in the west and Gongjue County and Chaya County in the north. Mangkang means "wonderful area" in Tibetan. In 2014, Mangkang County has a total area of 11431 square kilometers and has jurisdiction over 2 towns and 14 townships (including one ethnic township). Mangkang County has a total population of 73155 (2000), and its GDP has reached 511.5445 million yuan (the first half of 2012). The main tourist attractions are Tea Horse Road, Mangkang Yunnan Golden Monkey Nature Reserve, Mangcuo Scenic spot and Niguo Temple.
Travel Notes In Markam County