History of West Africa stretches north through the forested tropical regions and ends at the Sahel. The Guinean Forests of West Africa is a belt of tropical moist broadleaf forests along the coast, running in the west from Sierra Leone and Guinea through Liberia, Côte d'Ivoire and Ghana and Togo, ending at the Sanaga River of Cameroon in the east. The Upper Guinean forests and Lower Guinean forests are divided by the Dahomey Gap, a region of savanna and dry forest in Togo and Benin. The forests are a few hundred kilometres inland from the Atlantic Ocean coast on the southern part of West
West Africa this land is plains lying less than 300 meters above sea level, though isolated high points exist in numerous states along the southern shore of West Africa. The northern section of West Africa (narrowly defined to exclude the western Maghreb) is composed of semi-arid terrain known as Sahel, a transitional zone between the Sahara and the savannahs of the western Sudan. Forests form a belt between the savannas and the southern coast, ranging from 160 km to 240 km in width. The northwest African region of Mauritania periodically suffers country-wide plagues of locusts which consume water, salt and crops on