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 Erg Ferradj Erg Ferradj () is a town and commune in Abadla District, Béchar Province, in western Algeria. According to the 2008 census its population is 4,406, down from 4,670 in 1998, and an annual population growth rate of -0.6%, the second lowest in the province. The commune covers an area of . Erg Ferradj lies at an elevation of to the west of an extensive palm plantation covering 3000 hectares lying along the western side of the Oued Guir. The rocky hills of the hamada are found on both sides of the river, but are more dramatic on the