• Tucson
  • Baxoi 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.

Basu County, which belongs to Changdu, Tibet Autonomous region, is located in the east of Tibet Autonomous region and southeast of Changdu. It is located in the upper reaches of the Nujiang River. Baima Town, where the county seat is located, is 3260 meters above sea level. It is bordered by Zuogong County and Chaya County to the east, Chayu County to the south, Luolong County and Linzhi City to the west, Karuo District and similar Wuqi County to the north. The county covers an area of 12564.28 square kilometers (2014). The county is 210km long from north to south and 80km wide from east to west. it has jurisdiction over 4 towns and 10 townships, with a total population of 39021 (2010), including 19790 males and 19231 females, with a total of 6999 households. There are Hengduan Mountains in the southwest of Basu County and Nujiang River in the northeast. The climate type is the plateau temperate zone semi-arid monsoon climate, and the county government is located in the town of Baima from the municipal government of Changdu.
Travel Notes In Baxoi County
After going through 72 turns, counting the stars at Ranwu Lake at night|Jetta Tianlu Diary Day4
Day4 Zuogong-Ranwu Lake The whole journey is about 280KM When I woke up in the morning and looked in the mirror, my face was full of vicissitudes, ba
Sichuan into Qinghai out of Tibet --- Shannan Shigatse Mount Everest
It’s been a few days since I came back from Tibet, I’ve been immersed in the photos and can’t extricate myself haha The specific guide photos are simi
Traveling around the world (1490) Seventeenth of six trips to Tibet - Ranwu Lake
In early and mid-April 2021, during my trip to Tibet, I visited Ranwu Lake. The picture shows a commemorative photo I took at Ranwu Lake. From Bomi Co
Day 23 of Tibet Self-Driving Tour: From Chaya to Basu, visit Rencuo Lake, Basu Temple and Nujiang 72 Turns
Self-driving tour in Qamdo, Tibet. In the first nine days, we visited the four counties of Chaya, Gongjue, Jiangda, and Mangkang, and then returned to