Issaouane Erg confined to basins. Sand in the Issaouane Erg, below the level of the sand dunes, has accumulated to a depth of 20 to 30 meters. It has barchan dunes as well as star dunes of 300 to 430 meters high. The presence of both barchan dunes (which form due to unidirectional winds) and star dunes (which form when winds from various directions deposit sand) "suggests that wind regimes have changed over time". NASA's "Earth Observatory" notes all three types of erg dunes are present in the photos of the Issaouane Erg taken from the International Space Station: stationary mega dunes,
Erg Ferradj elementary schools, with 39 classrooms including 27 in use. There are a total of 1,096 school students. 2.8% of the population has a tertiary education, and another 14.9% has competed secondary education. The overall literacy rate is 71.3%, and is 77.2% among males and 65.3% among females. Erg Ferradj has 2 polyclinics and 2 room care facilities; residents must travel to Abadla or Méchraâ Houari Boumédienne for further medical treatment. Erg Ferradj has 3 operational mosques, with another 1 under construction. The commune is composed of three localities: Erg Ferradj Erg Ferradj () is a town and commune in Abadla