Postage stamps and postal history of the Gambia April 1970, The Gambia became a republic. Legendary Heroes of Africa was a series of postage stamps simultaneously issued and released by the countries of Gambia, Liberia, and Sierra Leone in March 2011 to celebrate Jewish heroes of the South African Liberation struggle. Postage stamps and postal history of the Gambia This is a survey of the postage stamps and postal history of the Gambia. The Gambia is a country in West Africa surrounded by Senegal except for a short coastline on the Atlantic Ocean in the west. The Gambia River, from which the country takes its name, flows through
Geology of Gambia Geology of Gambia The geology of Gambia is defined by thick and comparatively recent sequences of sediments and sedimentary rocks, deposited in the last 66 million years. The country is underlain almost entirely by geologically recent Cenozoic sedimentary rocks. Much deeper basement rocks are likely present, although they are not well understood. Most research has focused on oil and groundwater exploration. The oldest rock units recognized in the west of the country, along the Gambia River are sandstones and kaolinitic claystones from the Oligocene, Miocene or Pliocene. Ironstone, including iron oxides, gravel, clay and sand dating to the Pleistocene are