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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.

Jinggu Dai and Yi Autonomous County, which belongs to Pu'er City, Yunnan Province, is located in the southwest of Yunnan Province, west of the central part of Pu'er City, bordered by Ninger County in the east, and connected with Simao District and Ninger County on the south by Weiyuan River and Xiaohei River. the Lancang River is opposite to Lancang County and Lincang District and Shuangjiang County in the west, and Yuan County is adjacent to Beihe Town. County people's Government is located in Weiyuan Town, 130 kilometers away from Pu'er City and 466 kilometers away from Kunming City. By the end of 2016, the county covers an area of 7777 square kilometers, with 6 towns and 4 townships, with a total population of 311400. Jinggu belongs to the boundless mountain branch in the southern section of the longitudinal valley of the Hengduan Mountain system, which is alternately distributed among mountains, plateaus and basins, with the highest elevation of 2920 meters and the lowest elevation of 813 meters. It belongs to the subtropical monsoon climate with an annual precipitation of 1354 millimeters.
Travel Guides In Jinggu
Travel Notes In Jinggu
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Travel Asks In Jinggu
Travel Asks In Jinggu