According to Baidu map query, it is 82. 1 km from Changchun to Nong 'an, the driving time is 1 hour, 15 minutes, and it passes Yatai Avenue Expressway and Hunwu Expressway. Changchun, also known as "North Spring City" for short, and known as "Chachong" in ancient times, is a prefecture-level city, provincial capital city, sub-provincial city, I-type big city and the core city of Harbin-Changzhou urban agglomeration under the jurisdiction of Jilin Province, and one of the central cities and important industrial bases in Northeast China determined by the State Council. Changchun City is located in the northeast of China, in the geographical center of the northeast, bordering Songyuan City, Siping City, Jilin City and Harbin City respectively. It is the central city of Northeast Asia economic circle, the famous old industrial base in China, the earliest automobile industrial base and film production base in New China, and the cradle of the development of rail cars, photoelectric technology, applied chemistry, biological products and other industries in New China. China FAW Group Co., Ltd., CRRC Changchun Railway Passenger Car Co., Ltd., changchun film studio, Changchun Institute of Optics, Fine Mechanics and Physics, Changchun Institute of Applied Chemistry and Changchun Institute of Biological Products of Chinese Academy of Sciences were born one after another.