Lanzhou, formerly Lanchow, is the capital and largest city of Gansu province in northwestern China. Located on the banks of the Yellow River, it is a key regional transportation hub, connecting areas

Xining is the capital and most populous city of Qinghai province in western China and the largest city on the Tibetan Plateau. As of the 2020 census, it had 2,467,965 inhabitants, of whom 1,954,795 li