Ethiopian Mountains

The south-eastern highlands include the highlands of Sidamo, Bale, Arsi and Harerge. The highlands in this region are made up of volcanic rocks, but where the rivers cut deep, crystalline rocks are exposed.
The South Eastern Highlands have high mountains on their western rim, but no clear-cut boundary to the east, for they have a continuous [...]

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The western highlands are massive with an average height of 2000-25000m. They slope gradually to the west and terminate in extended lowlands starting from Tigray Administrative Region to the southern part of Gamo Gofa.
The highlands include many sub-divisions or blocks separated by the deep, steep-sided valleys of the major rivers.
For example, the Tekeze separates the [...]

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