Sudan is notable for having a varied geology. Part of the country lies in the region of the Sahara Desert, but the Nile River flows through the middle section of the country. In the central-western part of Sudan lies the Marra Mountains, which reach an elevation of 10,000 feet. The Nuba Mountains lie in the center of Sudan, and rise over 4,000 feet.
Legend has it that the Ark of the Covenant has been secreted away in a tiny Ethiopian village for centuries. The most striking geological element in the country is its division by the Great Rift Valley. This fissure was caused by volcanic lava deep within the canyons and gorges. Ethiopia is also blanketed by thick jungle, and is home to many rivers and lakes.
This small country has a very varied terrain. The interior of Eritrea is dominated by the Ethiopian Highlands that rise over 7,000 feet. Within these highlands can be found scattered rivers and streams. The coastal region of the country is bordered by the Red Sea and is actually semiarid in climatic conditions.
One of the most well-known countries of East Africa is Kenya. There are lowlands in both the northern and coastal regions of the country. Down south Kenya becomes flat and very dry. The Rift Valley also slices through Kenya, having created lakes as well as volcanic peaks rising to 17,000 feet.
The highlight of any visit to Uganda will take you to the southeastern corner, where you will find Lake Victoria. The land is very mountainous otherwise, with elevations between 3,000 and 6,000 feet quite common. Mountains reaching over 16,000 feet run alongside the western border, while to the east you'll find Mt. Elgon, which is an impressive 14,000 feet.
The Seychelles is actually an archipelago that is made up of roughly 90 small islands within the Indian Ocean. The Mahe group of islands are rocky with interior mountains. The Coralline islands are coral and inhospitable. The climate of the Seychelles is warm and wet.
Burundi is mainly a country of plateaus. The Great Rift Valley has done its work here as well, creating peaks that rise 7,000 feet as well as having a hand in the shaping of long and narrow Lake Tanganyika. The high elevation of Burundi helps to moderate the otherwise tropical climate.