Grand Erg Oriental small but ancient settlement of Ghadames at the Libyan frontier. Another and better road from Hassi Messaoud goes south, also crossing the grand erg where it passes a well called "Hassi Tartrat", before reaching the erg's far side. Further south lies the Ahaggar mountains. The cities of Wargla and Touggourt lie outside the western limits of the erg. Nearby, within the accepted boundaries of the "Grand Erg Oriental", the landscape is described as being "practically free from [sand] dunes" evidently due to strong, persistent winds. Petroleum and other hydrocarbons have been extracted in Algeria, from areas in and surrounding the
Erg Ferradj are generally well provided for. 100% of Erg Ferradj's population is connected to drinking water, 99% is connected to the sewerage system, and 99% (including 756 buildings) have access to electricity. There is no fuel service station in the town. Erg Ferradj has a total of 1,300 houses, of which 712 are occupied, giving an occupation rate of 6.2 inhabitants per occupied building. Erg Ferradj is reached by a local road from the N6 highway just west of Abadla. It is from Abadla and from Béchar. There is a total length of of roads in the commune. There are 3