Zigong City, also known as the Millennium Salt Capital, South China Light City, Sichuan Province, prefecture-level cities, medium-sized cities, southern Sichuan regional center, the southern center of the Chengdu-Chongqing Economic Circle, located in the Chengdu-Chongqing region of the construction of the Twin Cities Economic Circle south wing, the center of the southern Sichuan urban agglomeration, under the jurisdiction of Rongxian for the Xinhai Revolution of the Xinhai Revolutionary Xinhai first righteousness place. Located in the southern Sichuan Basin; east neighboring Longchang City, Lu County, south border Luzhou City, Yibin City, west and Gandan County, Jingyan County adjacent to the north by Renshou County, Weiyuan County, Neijiang City; terrain high in the northwest, low in the southeast; is a subtropical monsoon humid climate; the city covers an area of 4,381 square kilometers. As of the end of 2022, the city has 4 districts and 2 counties. By the end of 2022, the city had a resident population of 2.452 million. Zigong was founded as a salt city, and the words "Zi" and "Gong" are derived from the names of two salt wells, "Ziliujing" and "Gongjing". Name together; is an important source of dinosaur fossils in China, known as the "hometown of dinosaurs", with one of the world's three major dinosaur museums in Zigong Dinosaur Museum and famous at home and abroad; salt for the ancestor of the taste, rooted in the culture of Sichuan, born in the series of Sichuan cuisine, accompanied by the prosperity of the salt industry and the development of the salt industry economy and the formation of the Zigong Salt dishes, which has become a differentiation between Chengdu and Chongqing. Zigong Salt Gang cuisine, become different from the Chengdu-Chongqing two places "on the river gang", "down the river gang" cuisine in southern Sichuan "small river gang" on behalf of the country's first batch of old industrial cities industrial transformation and upgrading demonstration area, the national new type of It is one of the first demonstration zones for industrial transformation and upgrading of old industrial cities in China, a national demonstration base for energy-saving and environmentally friendly equipment manufacturing for new industrialization, and was once awarded the "Hometown of Chinese Salt Cuisine"; there are three colleges and universities, namely, Sichuan University of Light and Chemical Engineering, Sichuan Health and Rehabilitation Vocational College, and Zigong Vocational and Technical College. As of April 2023, Zigong has 18 A-class tourist attractions (including 7 4A-class tourist attractions), such as Zigong Dinosaur Museum and Xianshi Ancient Town. In 2022, Zigong's gross regional product was 163.842 billion yuan, an increase of 0.5% over the previous year.