The Akwapim-Togo Ranges in the eastern part of the country consist of a generally rugged complex of folded strata, with many prominent heights composed of volcanic rock. The ranges begin west of Accra and continue in a northeasterly direction, finally crossing the frontier into Togo. In their southeastern part, the ranges are bisected by a deep, narrow gorge cut by the Volta River. The head of this gorge is the site of the Akosombo Dam, which impounds the river to form Lake Volta. The ranges south of the gorge form the Akwapim section of the mountains. The average elevation in this section is about 450 meters, and the valleys are generally deep and relatively narrow. North of the gorge, for about eighty kilometers, the Togo section has broader valleys and low ridges. Beyond this point, the folding becomes more complex and heights increase greatly, with several peaks rising more than 610 meters above sea level. The country's highest point, Mount Afadjato, is located in this area. The ranges are largely covered with deciduous forests, and their higher elevation provides a relatively cooler, pleasant climate. Small-scale subsistence farming is typical in the ranges. In addition to the cultivation of rice and other staples, coffee plantations are found in the Togo section of the ranges.
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