Grand Erg Occidental The mean elevation of the Grand Erg Occidental is about 500 m, on average higher than the elevation of the Grand Erg Oriental, but not as high as the neighboring Tademaït to the southwest. This desolate region is a practically uninhabited area; there are no permanent villages and there are no roads crossing it. Grand Erg Occidental The Grand Erg Occidental (, al-ʿIrq al-Gharbī al-Kabīr), (also known as the Western Sand Sea) is the second largest erg in northern Algeria after the Grand Erg Oriental. It covers an area of approximately . The sand dunes in the erg are formed
Erg Ferradj eastern side. Erg Ferradj has a hot desert climate, with extremely hot summers and cool winters, and very little precipitation throughout the year. Agriculture is the main industry in Erg Ferradj. The commune has a total of of arable land found mainly to the east of the town, of which is irrigated. There are a total of 116,040 date palms planted in the commune. As of 2009 there were 9,575 sheep, 6,050 goats, 714 camels, and 23 cattle. There were also 6,400 chickens in 6 buildings. There is no significant tourist industry in Erg Ferradj. Basic services in the town