Ambroggi R. Carte géologique d’Agadir (1/50000); feuille NH-29-XV-1d: Rabat: Office National des irrigations (Institut Géographique National); 1955.

Note that the map does not cover the N'toughza valley or the area to the east of this valley, as no geological map has been drawn up to the east of the Agadir geological map up to the time of writing.