Towards the Dahra district at the north-east end the fall is gradual and continuous, but at the opposite extremity facing the Atlantic between Agadir and Mogador it is precipitous.
The Dahra range (see Mostaganem) overlooks the sea, and is separated from the Warsenis by the valley of the Shelif (see Atlas Mountains, Sahara and Tuat).
The Dahra and the Warsenis rose at the voice of a fanatic called Bu-Maza (" the goat man "), a Khuan of the order of the Mouley-TaIeb.
The Beni-Manassir, who rose almost at the same time in the Dahra, were subdued soon after.
In the vicinity of - Mostaganem are the Dahra mountains, honeycombed with caves.