The Rough Guide to China, David Leffman, Simon Lewis, Jeremy Atiyah, Mark South, Penguin, 2008, ISBN 978-1-84353-872-1, ... With the foothills of the Tibetan plateau, in the form of the Qilian Shan range, soaring up to the south, and a merciless combination of waterless desert and mountain to the north, the road known as the Hexi Corridor offers the only feasible way through the physical obstacles that crowd in west of Lanzhou ...
