Map showing Dakar and other regions of Senegal, The Gambia and Northern section of Guinea Bissau, with towns, native villages, boundaries international, international undemarcated, intercolonial or mandate provincial, district, rivers with falls, canals, lakes, salt lakes, low ground liable to temporary flood, marsh, ground liable to flooding, oasis, sandy desert contours, formlines, railways, railways under construction, metalled roads, all weather motor roads, seasonal roads, other tracks paths or explorers routes, telegraph and telephone lines, post offices with telegraphs or telephones, wireless telegraph stations, Minarets, mosques, fortified houses, lighthouses, ruins, waterpoints: wells and pools, mines and quarries, trig points, heights in metres, depths in metres, international boundaries and all weather motor roads highlighted in red. Colour. Relief shown by contours with height in metres. Some colour. Scale 1: 1 000 000.