Unavailable Figure 4. Topography and Drainage Ghana is characterized in general by low physical relief. Indeed, the Precambrian rock system that underlies most of the nation has been worn down by erosion almost to a plain. The highest elevation in Ghana, Mount Afadjato in the Akwapim-Togo Ranges, rises only 880 meters above sea level. There are, nonetheless, five distinct geographical regions. Low plains stretch across the southern part of the country. To their north lie three regions--the Ashanti Uplands, the Akwapim-Togo Ranges, and the Volta Basin. The fifth region, the high plains, occupies the northern and northwestern sector of the country (see fig. 4). Like most West African countries, Ghana has no natural harbors. Because strong surf pounds the shoreline, two artificial harbors were built at Takoradi and Tema (the latter completed in 1961) to accommodate Ghana's shipping needs. Data as of November 1994
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