• Tucson
  • Geermu、Golmud

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.

Golmud, a county-level city under the jurisdiction of Qinghai Province, is administered by Haixi Mongolian and Tibetan Autonomous Prefecture and is located in the central and western part of Qinghai Province and the hinterland of the Qinghai-Tibet Plateau. The topography of the area is complex and can be divided into two parts: the basin plateau and the northern foot of Tanggula Mountains. It is a typical plateau continental climate; the total area is 118954.18 square kilometers, with 5 streets, 2 towns and 2 townships; in 2017, there are 27 ethnic minorities with a resident population of 240494. "Golmud" is transliterated in Mongolian and translated as Gaolumsi, Guoliang and Garmu, meaning "a place with dense rivers". Golmud is a strategic fortress connecting Tibet, Xinjiang and Gansu and a transportation hub in western China. Qinghai-Tibet, Qingxin and Dunge highways meet here; the Qinghai-Tibet Railway has been opened to traffic; there are the headwaters of the Yangtze River and ten thousand
Travel Notes In Geermu、Golmud
Walking in Tibet——Qinghai-Tibet Line
Walking in Tibet (4) - Qinghai-Tibet Line Compilation time 2022.1.11~24 After resting in the holy city for two days, that is, on the last day of Jun
Self-driving Sichuan-Tibet Line (in)-Qinghai-Tibet Line (out)
I have been to many places, and the Sichuan-Tibet line has always been a dream of mine. In July 2020, I started to make a travel plan for the Sichuan
All the way to the west - Golmud
Serialized all the way to the west (expanded on the axis of time) Golmud 6Ddy Mangya Huatugou --- Golmud 450 kilometers After a night's rest, we set o
Go on a trip in August, check in the largest salt lake in Asia and the second in the world - Chaerhan Salt Lake, it is so beautiful
Beautiful Qinghai, Golmud on the cloud. Chaerhan Salt Lake, the largest salt lake in the world I like this cotton candy-like lake, and I also like the