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Ahaggar
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Map of northwestern Africa highlighting the Ahaggar Plateau in southern Algeria with an orange shape. Surrounding countries including Morocco, Tunisia, Libya, Niger, Mali, Mauritania, and Western Sahara are labeled, and a small inset globe shows the region's location within Africa. Jagged peaks of the Ahaggar Mountains in Algeria rise above misty valleys at sunrise, with layered ridges and a colorful sky in the background. Algeria: geography Ahaggar
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Mount Kenya in Mount Kenya National Park is the highest mountain in Africa. UNESCO World Heritage Site. Giant Lobelia in foreground. (Mt. Kenya; Mt. Kenya National Park; mountains; rugged mountain; African geography, African landscape, stratovolcano)
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Hoggar
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Map of northwestern Africa highlighting the Ahaggar Plateau in southern Algeria with an orange shape. Surrounding countries including Morocco, Tunisia, Libya, Niger, Mali, Mauritania, and Western Sahara are labeled, and a small inset globe shows the region's location within Africa.
Ahaggar, Algeria

Ahaggar

plateau, Africa
Also known as: Hoggar
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Jagged peaks of the Ahaggar Mountains in Algeria rise above misty valleys at sunrise, with layered ridges and a colorful sky in the background.
Ahaggar, North Africa

Ahaggar, large plateau in the north center of the Sahara, on the Tropic of Cancer, North Africa. Its height is above 3,000 feet (900 meters), culminating in Mount Tahat (9,573 feet [2,918 meters]) in southeastern Algeria. The plateau, about 965 miles (1,550 km) north to south and 1,300 miles (2,100 km) east to west, is rocky desert composed of black volcanic (basalt) necks and of flows rising above a pink granite massif. The main caravan route to Kano in northern Nigeria passes along the plateau’s western margin through the important oasis town of Tamanrasset, Algeria, which is about 1,200 miles (1,900 km) south of Algiers. Natural-gas deposits have been found northwest of the plateau.

The Editors of Encyclopaedia BritannicaThis article was most recently revised and updated by Mindy Johnston.
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