Map of modern Libya. The remains of Lepcis Magna lay just east of modern Al Khums. Tripoli is the Oea of Apuleius. Sabratha (modern Sabratah) is between Zuwarah and Az Zawiyah, the two towns west of Tripoli. The slightly darkened area between Tripoli and Medenine in Tunisia represents the Gefara Plain. Most of the central Gefara is desert which is unsuitable for settled agriculture, and the vast majority of the modern tribes of the Gefara are pastoralists. Only a thin strip of coastal territory is suitable for unirrigated agriculture. It is likely that Sabratha depended on maritime commerce for most of its needs.