Regretting "the misreading of the importance of the south Algerian rock art" in the work of Lhote, P. Huard and L. Allard published in 1976 in Lybica (CRAPE, Algiers) an important study on Les figurations rupestres de la région de Djelfa, Sud Algérois. The authors therein recorded forty-three numbered sites or stations which are with some exceptions located near the interior or at the edges of a triangle formed on the north by the town of Djelfa, on the south-west by the village of Sidi Makhlouf and on the south-east by the town of Messaad.