- Lanzhou -

Lanzhou City, abbreviated as "Lan" and "Gao", also known as Jincheng, is a prefecture level city and capital of Gansu Province, China. It is located in the northwest and central parts of Gansu Province, and is the geometric center of China's land map. It borders Wuwei City and Baiyin City to the north, Dingxi City to the east, and Linxia Hui Autonomous Prefecture to the south. Lanzhou is an important central city in the western region approved by the State Council, a national comprehensive transportation hub city, an advanced manufacturing base in the northwest, and a regional highland for scientific and technological innovation.

Lanzhou City is the political, cultural, economic, and educational center of Gansu Province, and a historic Yellow River cultural city with a history of over two thousand years since the Qin Dynasty. It has been a transportation hub and military fortress that connects the four regions and stretches thousands of miles since ancient times, and is known as the "Pearl of the Yellow River".