Sahara

Map showing a section of the Sahara, a desert region which covers most of North Africa, and surrounding regions of Mali and Algeria, and international, international undemarcated, intercolonial, provincial, frontier district boundaries, with towns of 1st, 2nd, 3rd, 4th and 5th importance, rivers, unsurveyed water courses, canals, marshes, ground liable to flooding, trigonometrical points, height in metres, depth in metres, water points, ruins of historical interst, wireless stations, landing ground, mines or quarries, lighthouses, fortified houses or towers, oases, railways with gauge and number of tracks, railways under construction, metalled roads, principal motor tracks, secondary motor tracks, principal camel tracks, other tracks, paths or explorers routes, unsurveyed tracks, provinces, frontier districts, localities, mountain ranges, peaks, valleys, capes, islands, tribes, regions, camps, rest houses, petrol depots, chief post of Cie Saharienne, advanced post of Cie Saharienne. Relief shown by form lines, hachures, shading, height in metres. Colour. Scale 1 : 2.000 000.