The Semien Mountains are the highest parts of the Ethiopian Plateau (more than 2,000 meters; or 6,560 feet).
Only trekking is available starting from 5 up to 10 days starting from Gondar.
They are surrounded by a steep, ragged escarpment (step), with dramatic vertical cliffs, pinnacles, and rock spires. Included in the range is the highest point in Ethiopia, Ras Dashen at 4,533 meters (14,926 feet). The plateau and surrounding areas are made up of basalt rock from massive, flood-like eruptions of lava; these flood basalts are probably more than 3,000 meters thick.