What are Ethiopia's five main topographic regions?

Although Ethiopia’s complex relief is difficult to classify, there are five discernible topographic regions that define the country's landscape:1

• Western Highlands: The most extensive and rugged region, containing the North Central massifs and the country's highest point, Mount Ras Dejen.1
• Western Lowlands: A region stretching along the borders with Sudan and South Sudan, characterized by lower elevations and river valleys.1
• Eastern Highlands: A smaller but topographically impressive region that includes high peaks such as Tullu Deemtu and Mount Batu.1
• Eastern Lowlands: A vast area that slopes away from the Eastern Highlands toward the border with Somalia, encompassing regions like the Ogaden and the Hawd.1
• Rift Valley: A massive tectonic trough running through the center of the country, featuring a hot, low-lying northeastern section and a more productive, elevated southwestern section known for its lakes.1