• Tucson
  • Bomê 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.

Bomi County, located in the southeast of Tibet Autonomous region, is one of the commodity grain base counties in Tibet, and one of the important producing areas for exporting mushroom Tricholoma matsutake and Morchella. The marine glaciers in the territory are well developed, with famous glaciers such as Kachin, Zepu, Ruoguo and Guxiang. Some areas belong to the south of the Yangtze River in Tibet. Yigong Lake and Lanwu Lake are famous. Bomi County is located in the southeast of Tibet Autonomous region, on the north bank of the Palong Zangbu River. It is located at 94 degrees east longitude, 0007 degrees east longitude, 96 degrees 3004 degrees north latitude, 29 degrees 2106 mi 30 degrees 4026 north latitude. The total area of the county is 16578 square kilometers. National Highway 318 passes through the county center, 636km away from Lhasa, capital of the autonomous region, 230km away from Linzhi city, 217km away from Basu county of Changdu. The Bomi County Party Committee was established in 1959. Located in the northern foothills of the Himalayas
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Travel Asks In Bomê County