Map showing French Congo, a French colony which at one time comprised the present-day areas of the Republic of Congo, Gabon and the Central African Republic, and international, intercolonial, provincial andf district boundaries, with place names, railways, with gauge in metres written aong the line, under construction, projected, roads suitable for motor traffic, suitable for carts, tracks, telegraphs or telephones, telegraphs or telephones along roads or tracks, provinces, frontier districts, localities, mountain ranges, peaks, valleys, capes, islands, tribes, Qoz (sand hills), towns of 1st, 2nd, 3rd, 4th and 5th importance, rivers, unsurveyed, canals, marshes and swamps, plains liable to inundation, minor hill features, geodetic trigonometrical stations,, well, springs, waterholes, pools, historical ruins, wireless telegraph stations, limits of navigation, passes. Altitudes in metres, Depths in metres. Contours are at 200 & 500 metres & thence at 500 metre intervals. Relief shown by form lines with height in metres, tinted shading. Second edition. Colour. Scale 1 : 2,000,000.