It starts from Baijila Road, Sunit Left Banner, Xilingol League, Inner Mongolia Autonomous Region, and ends at Nanzhu Avenue, Haicheng District, Beihai City, Guangxi Zhuang Autonomous Region. According to Baidu Map query, the Jiangsu North Line starts from Baijila Road, Sunit Left Banner, Xilingol League, Inner Mongolia Autonomous Region, and ends at Nanzhu Avenue, Haicheng District, Beihai City, Guangxi Zhuang Autonomous Region. It is the 9th of the 47 north-south vertical lines. It is an important ordinary national road that runs through the north and south ends of the central region. Schematic diagram of the entire northern Jiangsu line. National Highway 209 has a total length of 3,685 kilometers. The Jiangsu North Line runs through 6 provinces including Inner Mongolia, Shanxi, Henan, Hubei, Hunan, and Guangxi, and passes through 21 administrative regions above the prefecture level.