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Monumental engravings in an area today marked by aridity reposition water, displacement, and human occupation at the center of Arabian Peninsula archaeology, in a find that expands interest in how ancient groups registered and interpreted the landscape.
Life-size engravings of camels and other animals, identified in northern Saudi Arabia, are helping researchers reconstruct how human groups occupied a region now dominated by aridity.
In a study published in Nature Communications, archaeologists associate this set of rock art with sites dated between 12,800 and 11,400 years and argue that the panels were linked to areas of seasonal water and circulation routes in the desert.
The records were found south of the Nefud desert, in three areas of the Sahout region.
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According to the authors, the sites of Jebel Arnaan, Jebel Misma, and Jebel Mleiha are distributed over about 30 kilometers and indicate that human populations were able to explore the interior of northern Arabia earlier than previously indicated by available archaeological evidence.
What was found on the rocks
The teams recorded 62 panels with 176 engravings.
Of this total, 130 are life-size naturalistic images, predominantly of camels, as well as ibex, wild equids, gazelles, and an aurochs, an extinct bovine considered an ancestor of domestic cattle.
The figures measure from 2.5 to 3 meters in length and between 1.8 and 2.2 meters in height.
Although some of the engravings are on blocks accessible from the ground, others appear in high and hard-to-reach points.
In one of the largest panels, 23 camels and equids were engraved along about 23 meters, on two rock surfaces located at 34 and 39 meters high.
The article describes that the work would have been done on an inclined ledge of 30 to 50 centimeters wide.
Maria Guagnin, the lead author of the study, told Reuters that the engravers would have needed to stand on a narrow ledge in front of the rock wall and that, from that position, they would not be able to see the complete image while working.
Still, according to her, the representations preserve a naturalistic pattern.
This set led researchers to treat the engravings not just as images of animals, but as elements inserted in specific locations of the landscape.
In the article, the authors state that the panels appear in visible areas, facing the surrounding land, and in paths that connected points of temporary water.
The hypothesis about water and displacement in the desert
The main interpretation presented in the study is that rock art marked seasonal water sources and paths between these points.
In Jebel Arnaan, for example, the records follow a groove in the mountain that still conducts water today after episodes of rain.
In Jebel Misma, the panels appear at the edge of an ancient lake, in an area where the terrain favored the accumulation of water.
The geological data gathered by the authors indicate that these bodies of water were established after the hyper-arid phase of the Last Glacial Maximum.
The article reports that sedimentation in playas began around 16,000 years ago in Jebel Misma and 13,000 years ago in Jebel Arnaan, in what the researchers classify as the oldest evidence of surface water in northern Arabia after this period of extreme aridity.
Another point used to support this reading is the way camels were represented.
According to the study, many figures show males in estrus, recognizable by anatomical features such as a bulkier neck.
In an interview with Reuters, Guagnin stated that this detail refers to the wet season, which reinforces, in the team’s assessment, the connection between the engravings, seasonality, and the locations where water accumulated.
What the dating indicates about human presence
The chronology was established from stratified excavations and luminescence and radiocarbon dating.
Samples collected from archaeological deposits below engraved panels indicated human occupation between 12,800 and 11,400 years ago, with a tool found under a camel engraving associated with dates of 12,800 ± 1,100 and 12,200 ± 1,400 years.
Based on these results, the authors state that the groups that produced the engravings were among the first occupants of the interior of northern Arabia after the Last Glacial Maximum.
The article also notes that there were no dated sites in the region between this period and about 10,000 years ago, which suggested a longer interval without proven human presence.
The excavations also brought indications of connection with populations from other areas.
Among the recovered materials are types of tools associated with the final Epipaleolithic and the pre-pottery Neolithic of the Levant, as well as green pigment and dentalium beads.
According to the study, these shells would have come from the Red Sea or the Mediterranean, with the nearest source being more than 320 kilometers away.
Regional contacts and open questions
At the same time, the researchers highlight that the rock art of Sahout has its own characteristics.
The article argues that, although there was contact with neighboring groups, local communities developed a distinct visual expression, centered on desert animals and, above all, on the camel.
This combination of regional circulation and local symbolic production appears as one of the lines of interpretation of the study.
However, not all points are resolved.
The authors state that there is no way to confirm with certainty whether the engravings were painted, as prolonged exposure to the elements may have erased any pigment.
It also remains open whether each panel served only to indicate water and routes or if it had other functions associated with the group’s memory, land use, or symbolic practices.
Even with these gaps, the set expands what is known about human occupation in arid areas of the Arabian Peninsula.
Instead of only pointing to the presence of hunter-gatherers in the region, the data suggest, according to the authors, detailed knowledge of the landscape, regular movements between temporary water sources, and lasting use of rock-carved landmarks.
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