Archaeological research at Oued Beht, in the hills of northwest Morocco overlooking the Oued Beht River, is revealing a previously unknown chapter in the region’s past. Excavations have uncovered evidence of large-scale agricultural communities dating from roughly 5,400 to 4,900 years ago, as well as defensive structures built about 4,000 to 3,500 years ago. The discoveries suggest that communities in northwest Africa actively shaped their environments and participated in wider exchange networks across the Mediterranean.
Previous work by the Oued Beht Archaeology Project identified what may be the earliest and largest agricultural complex yet discovered in Africa outside the Nile Valley. Its origins date to approximately 5,400 to 4,900 years ago. New excavations conducted in 2023 have provided further insight into the site and its changing role over time.
The researchers’ new research documents the earliest known large-scale structures in North Africa beyond the Nile Valley that were probably defensive in nature. The structures are approximately 4,000 to 3,500 years old.
It is unclear exactly what threats these wall-like structures were intended to address. They may have had less to do with defending against invading armies than with growing competition over land, resources and movement through the landscape. Their construction suggests that communities sought to protect themselves or assert power over strategically important locations.
The discovery pushes back the evidence for organized defensive structures in the Maghreb and indicates that societies in the region were more complex and structured than previously thought.
The research also shows that the Oued Beht ridge became a focus of activity again during the medieval period, from the 11th to the 13th century AD. The earlier defensive structures were rebuilt, settlements or farms were established on nearby hills, and people were buried in cemeteries between the two areas.
Together, these discoveries offer rare archaeological evidence from rural areas during both prehistoric and medieval times. They provide insight into how societies developed and were sustained in regions that are often overlooked in historical accounts.
The prehistoric heart of the Maghreb
For many years, the later prehistory of the Maghreb—North Africa’s Mediterranean region, including present-day Morocco, Algeria and Tunisia—was poorly understood. The archaeological record was often fragmentary compared with those of neighboring regions such as the Iberian Peninsula and the eastern Mediterranean. Research in recent years has begun to change that picture.
Excavations at Oued Beht have revealed that human activity covered at least 10 hectares. The earliest major phases date from the middle of the fourth millennium BC to the beginning of the third millennium BC, during the final Neolithic period.
Evidence from prehistoric plant and animal remains points to agricultural communities that grew crops including barley and wheat. People also gathered wild plants and kept livestock.
Oued Beht was an important center of craft production as well. Archaeologists have found thousands of polished stone axes and other tools, together with finely made pottery, some of it decorated with painted designs.
It remains unclear whether prehistoric Oued Beht was a permanent village, a seasonal gathering place or a type of settlement not yet well understood. It was nevertheless an important focal point in the landscape of northwestern Morocco.
A possible defensive system
The presence of ancient earthworks and walls at the site has been recognized since the 1930s. French archaeologist Armand Ruhlmann recorded a configuration of three walls, with the fourth side protected by the ridge’s natural cliffs. He described it as a defensive structure and named it Éperon Barré, or “barred spur.” Its exact nature and date remained uncertain until the latest excavations.
The new work has revealed multiple layers of ditches, ramparts and walls built across a narrow section of the Oued Beht ridge between the river and the valley. The system blocked and protected the southern end of the ridge.
Radiocarbon dating of sediments associated with the structures provided a chronology for the site. The earliest structures date to a period corresponding to the Bronze Age in the western Mediterranean, making them the earliest known defensive installation in North Africa outside Egypt.
What was the construction for?
The structure raises important questions about the society that built it. Constructing the ramparts and ditch system would have required planning, coordination and the mobilization of labor. That, in turn, suggests that local communities were capable of organizing complex construction projects.
During the earlier Neolithic period, activity at Oued Beht was concentrated in the site’s larger, more open northern area. By the period represented in the new study, the focus had shifted to the narrower and more defensible southern ridge. This may reflect a change in settlement or defensive strategies.
Connections across the Mediterranean
The second millennium BC was a dynamic period throughout the Mediterranean. In the southern Iberian Peninsula, the Argaric culture, which flourished from about 2200 to 1550 BC, developed hilltop settlements in what is now Spain. These communities were characterized by planned architecture, advanced metallurgy—particularly bronze production—and a pronounced social hierarchy reflected in burial practices. They often built fortified sites and strategically located settlements to control the surrounding territory.
Growing evidence indicates that communities in northwest Africa were connected to wider Mediterranean networks, including those linking the region with present-day Spain and Portugal. The discovery at Oued Beht shows that the people of the Maghreb were not isolated. They participated in broader processes that shaped the western Mediterranean.
The defensive system may reflect wider changes in social organization and relations between communities. Competition over resources, control of movement and the emergence of more formal leadership structures may all have played a role.
Reconsidering North Africa’s past
The discoveries at Oued Beht highlight how much remains to be learned about North Africa’s deep history. The defensive walls show that the community could organize a large-scale construction project, providing evidence of a social transformation that archaeologists are only beginning to recognize.
Medieval remains show that the ridge was used again centuries after the prehistoric settlement had been abandoned. Oued Beht was not simply a temporary settlement; it was a landscape repeatedly chosen by different communities over thousands of years.
As research continues, the site could help clarify how societies in the Maghreb developed from early rural communities into the medieval rural world.
Source: www.sciencedaily.com
