Lanzhou, capital of Gansu Province, is located between the Gaolan and the White Pagoda (Baita) mountains. It has been a hub of communications between China’s Central Plain and northwestern China and an important point on the Silk Road that linked China’s ancient capital Xi’an with Central Asia and the Roman Empire. Branches of the Yellow River divide the city into several parts, giving Lanzhou a unique layout. Lanzhou is the political, economic, and cultural center of Gansu Province. Its chief industries include oil refining, chemicals, machinery, and wool textiles. Lanzhou is conneted with Beijing, Shanghai, Xi’an, Yinchuan, Urumqi, Xining, and Jiuquan by air and has convenient railway communications as well.