According to Baidu map query, the whole journey from Lanzhou to Dingxi is about 107.2 km, and the driving time is about 1 hour for 28 minutes. Lanzhou, known as Jincheng in ancient times, is a prefecture-level city, provincial capital and I-type city under the jurisdiction of Gansu Province. It is an important industrial base and comprehensive transportation hub in the northwest of China, one of the important central cities in the western region approved by the State Council and an important node city in the Silk Road Economic Belt. There are five districts and three counties in the city, with a total area of 1.3 1.000 square kilometers. Dingxi City, commonly known as "Longzhong", is a prefecture-level city under the jurisdiction of Gansu Province, an important node city in Gansu section of the Silk Road Economic Belt approved by the Gansu Provincial People's Government, and a central city in Longzhong.