Deldoul, Djelfa, a municipality or commune of Djelfa province, Algeria
Deldoul, Adrar, a municipality or commune of Adrar province, Algeria
North of Djelfa town there is an imposing physical feature known as Salt Rock (Rocher de Sel) that resulted from the erosion of rock salts and marls by rain, and to the west of the town Megalithic funerary structures are found.
The best fossils of Pelorovis oldowayensis are known from the Olduvai Gorge in Tanzania; a complete skeleton of Pelorovis antiquus was found near Djelfa in Algeria.
Comparable rock engravings have been described more to the east in the surroundings of Djelfa and in Constantine, Algeria.