'A Sharp Corner on the Mau Escarpment', c 1900.
© NMeM / Royal Photographic Society / Science & Society Picture Library
Printing out paper print. Photograph by William D Young of part of the Uganda railway, built during the period of British control of East Africa. A European in a pith helmet sits facing forward, while two Indians push. The Mau Escarpment is a steep 3,000-metre-high cliff which runs along the western edge of the Great Rift Valley.