The new settlement was intended to become an important centre for the colonies of the Phenicians in the West. The situation was peculiarly fortunate. Where the north coast of Africa approaches Sicily most nearly, the mountain range which runs along this coast, and forms the edge of the table-land in the interior, sinks down in gentle declivities, which thus form water-courses of considerable length, to a fertile hill country still covered with olive-gardens and orange-forests. From the north the sea penetrates deeply into the land between the "beautiful promontory" (Ras Sidi Ali) and the promontory of Hermes (Ras Addar). On the western side of this bay a ridge of land runs out, which possesses excellent springs of water. Not far from the shore a rock rises steeply to the height of about 200 feet. On this was planted the new citadel, Byrsa, on which the wanderers erected a temple to their god Esmun (I. 377). This citadel, which is said to have been about 2000 paces (double paces) in the circuit,[489] was also the city round which at a later time grew up the lower city, at first on the south-east toward the shore, and then on the north-west toward the sea. The harbour lay to the south-east, under the citadel. Some miles to the north of the new settlement, on the mouth of the Bagradas (Medsherda), at the north-west corner of the bay, was Ityke, the ancient colony of the Phenicians, which had been in existence for more than two centuries when the new settlers landed on the shore of the bay; and not far to the south on the shore was Adrymes (Hadrumetum), another city of their countrymen, which Sallust mentions among the oldest colonies of the Phenicians.[490] The Carthaginians never forgot their affection for the ancient Ityke, by whose assistance, no doubt, their own settlement had been supported.[491]