The oases of Kharga and Dakhla have been linked administratively from ancient times into the present. This chapter presents a study of the two main physical routes that connected the two oases: the Darb al-Ghubari and the Darb Ain Amur. Cairns, tracks, rock art, inscriptions, ceramics, and other small finds serve to identify the tracks and stopping points along the way. These paths, particularly the Darb Ain Amur, evolved over time, reflecting the changing environment and modes of transport that were used to make the journey from pharaonic to Roman times.

The comparison of two small oases of the Kharga and Dakhla depressions, in the Western Desert of Egypt, confirmed that spring-fed oases have been attractive after the onset of aridity, ca 4500 BC, but irrigated agriculture has not been proved yet before the Intermediate Period. Irrigated areas were suject to harsh constraints despite the wealth of underground water during millennia: wind-induced dune shifting and soil erosion in Amheida and El-Deir, while flash floods destroyed most of the El-Deir oasis during the Roman period. Recovery was more difficult because artesian springs, which relied on water stored during the wet phase of the Holocene, were progressively exhausted by irrigation practices and could no longer compensate for the drying up of the oasis environment. If natural factors are not the unique causes of economic decay in the oases, they may have some responsibility in the progressive abandonment of agriculture during the third and fourth centuries. Amheida disappeared to the benefit of El-Kasr fortress, while El-Deir retained some importance for caravan trade between Hibis and the Nile Valley thanks to a well secured by a newly built fortress from 288 to the sixth century AD.

This chapter presents the ceramic data collected in the field and participate to understand the role and place of the site of El-Deir in the Western Desert commercial network in Roman times. In order to have a better comprehension of the economic importance of the north of the Kharga Oasis during Roman times, ceramic material from the exploration of three sites has been studied: the Naqb Abu Sighawal track, connecting El-Deir to Girga in the Nile Valley; the Roman fortress and its vicinity; the agricultural plots of El-Deir. This study shows El-Deir as a reception and redistribution center between the Kharga Oasis and the Nile Valley and the Mediterranean space to a lesser extent, from the Late Period but especially from the Ptolemaic period and during Early Roman times. This role as reception point influenced the agricultural landscape, which has been gradually transformed from subsistence farming to commercial agriculture, with a fortress used as checkpoint, caravanserai, and storage place.

The comparison of two small oases of the Kharga and Dakhla depressions, in the Western Desert of Egypt, confirmed that spring-fed oases have been attractive after the onset of aridity, ca 4500 BC, but irrigated agriculture has not been proved yet before the Intermediate Period. Irrigated areas were suject to harsh constraints despite the wealth of underground water during millennia: wind-induced dune shifting and soil erosion in Amheida and El-Deir, while flash floods destroyed most of the El-Deir oasis during the Roman period. Recovery was more difficult because artesian springs, which relied on water stored during the wet phase of the Holocene, were progressively exhausted by irrigation practices and could no longer compensate for the drying up of the oasis environment. If natural factors are not the unique causes of economic decay in the oases, they may have some responsibility in the progressive abandonment of agriculture during the third and fourth centuries. Amheida disappeared to the benefit of El-Kasr fortress, while El-Deir retained some importance for caravan trade between Hibis and the Nile Valley thanks to a well secured by a newly built fortress from 288 to the sixth century AD.