Kumasi and Tamale. The country is mainly flat with a hilly coastal plain. The highest point is Mount Afadjato. The River Volta is dammed to create Lake Volta. Overgrazing by animals and soil erosion are also a problem in some areas.
Wildlife is threatened by poachers.
Animals include antelopes, monkeys, elephants, lions, crocodiles, and snakes. Mosques were also built with mud bricks, and large mud columns to support the roofs. The architectural legacy of European trade in Ghana can be seen in the Portuguese Elmina Castle and British Colonial buildings in Kumasi. The Ghanaian population is just under nineteen million. The majority of the people live in the south.