How many kilometers is it from Lanzhou to Jiayuguan?

770 kilometers. According to Baidu map, Jiayuguan is located in the middle of the narrowest valley 5 kilometers west of Jiayuguan City, Gansu Province. The city walls on both sides of Chengguan pass through the desert Gobi, connecting the Great Wall of Montenegro in the north and the first pier in the world in the south, 770 kilometers from Lanzhou to Jiayuguan. It takes 7 hours 15 minutes to drive. Lanzhou is the westernmost pass of the Great Wall of Ming Dynasty, which was once called the throat of Hexi in history. Because of its dangerous terrain and magnificent architecture, Lanzhou is known as the first male pass in the world, even the lock key. Jiayuguan is the traffic fortress of the ancient Silk Road, and is known as one of the three wonders of the Great Wall of China (Shanhaiguan in the east, Beitai in the middle and Jiayuguan in the west). Jiayuguan was founded in the fifth year of Hongwu in Ming Dynasty (1372). It consists of inner city, outer city, Luocheng, Wengcheng, moat and the Great Wall on the north and south wings, with a total length of about 60 kilometers. Towers, piers and forts are scattered all over the Great Wall, which consists of three lines of defense: inner city, outer city and moat, overlapping defense, forming a defense system of five miles, one long, ten miles, one pier, three miles, one fort and a hundred miles. The main attractions of Jiayuguan include Jiayuguan Guancheng, Hanging Wall, First Pier of the Great Wall, Wei and Jin Tombs, Stone Carvings in Montenegro, Mulan City, Qiyi Glacier and Gliding Base. Most of the scenic spots in Jiayuguan are closely related to the Great Wall culture and the Silk Road culture, each with its own characteristics. It is a world cultural heritage, a national AAAAA tourist attraction, a national key cultural relic protection unit and a national patriotic education demonstration base.