Cal Madow is a mountain range in the eastern part of the country. Extending from the northwest of Erigavo to several kilometres west of the city of Bosaso in neighbouring Somalia, it features Somaliland's highest peak, Shimbiris, which sits at an elevation of about . The rugged east–west ranges of the Karkaar Mountains also lie to the interior of the Gulf of Aden littoral. In the central regions, the northern mountain ranges give way to shallow plateaus and typically dry watercourses that are referred to locally as the ''Ogo''. The Ogo's western plateau, in turn, gradually merges into the Haud, an important grazing area for livestock.