• Tucson
  • Lingwu City

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.

Lingwu, known as Lingzhou in ancient times. Ningxia Hui Autonomous region has jurisdiction over county-level cities, which is the core area of industrial development in Ningxia Hui Autonomous region and Yinchuan City. Lingwu is known as "south of the Yangtze River" and has a long history of civilization. as early as the late Paleolithic Age more than 30,000 years ago, human beings thrived in the magical land of Lingwu, which is one of the birthplaces of the ancient civilization of the Chinese nation. It has been more than 2200 years since Lingwu bought the county in the fourth year of Emperor Huidi of the Western Han Dynasty (191 BC). Lingwu is rich in tourism resources and many places of interest. The famous Shuidonggou is the earliest Paleolithic human cultural site found in China, and is known as "the birthplace of Chinese prehistoric archaeology". The Lingwu dinosaur fossil site 160 million years ago is a large area, concentrated distribution, well-preserved and surrounding environment in China.
Travel Notes In Lingwu City
Tracing the source of Ningxia's history - Shuidonggou
Northwest China, Ningxia, Inner Mongolia, Qinghai, Gansu... along the Silk Road all the way north, riding a camel on the desert and listening to the j
In 2019, the twelfth day of the 15-day self-driving in Gannan and Northwest Gansu Shuidonggou
The twelfth day Today we are going to change places again, in fact, we are going back gradually. Visit Shuidonggou in the morning and arrive in Pingl
Only when I came here did I know that Yinchuan is very fun.
【Preface】 Where to go during the National Day holiday? Start counting in early September. Those popular scenic spots and Internet celebrity cities m
Traveling around the world (1540) Ningxia trip eleven - Shuidonggou Scenic Spot
In late July 2021, during my trip to Ningxia, I visited Shuidonggou scenic spot. The picture shows a commemorative photo I took in Shuidonggou Scenic