The Atlas Mountains (Kabyle: Iurar n leṭles, Arabic: جبال الأطلس ) is a mountain range across a northern stretch of Africa extending about 2,400 km (1,500 miles) through Morocco, Algeria, and Tunisia. The highest peak is Jbel Toubkal, with an elevation of 4,167 metres (13,671 ft) in southwestern Morocco. The second highest mountain is the M'Goun of 4,071 metres (13,356 ft). The Atlas ranges separate the Mediterranean and Atlantic coastlines from the Sahara Desert. The population of the Atlas Mountains are mainly Berber tribes in Morocco and kabyles in Algeria. The terms for 'mountain' in some Berber languages are adrar and adras, believed to be cognate with the toponym.