Djebel-Trozza is a mountain in the Forest of Aala, due east of Al Qayrawan, Tunisia. [1] Djebel Trozza is located at 35° 33' 51" N and 9° 35' 35" E [2] and there is an abandoned Lead/ Zinc mine on the mountain, and Roman Empire ruins are identified as the remains of Tarasa in Byzacena.