They are met with in a long strip of country south of the Majerda, between the Algerian frontier and the sea-coast north of Susa; also inland, to the south-west of Susa, and near Kef; also in another long strip between the vicinity of Sfax on the north and the Jerid on the south.
These places are noticed separately, as are also Goletta (formerly the port of Tunis), Bizerta (a naval port and arsenal), Kef, Porto Farina, and the ruins at Carthage and Sbeitla (Sufetula).
In 1906 was opened a continuation of the line from Pont du Fahs to Kef and thence southwest to Kalaat-es-Senam, a place midway between Kef and Tebessa, the centre of the Algerian phosphate region.
A branch from the Kef line runs to the phosphate mines of Kalaa-Jerda.
The principal ranges of the Little Atlas - from west to east - are the Tlemcen (5500 ft.); the Warsenis (with Kef Sidi Omar, 650o ft.); the Titeri (4900 ft.); the Jurjura, with the peak of Lalla Kedija (7542 ft.) and Mount Babor (6447 ft.); and the Mejerda (3700 ft.), which extends into Tunisia.