How a hobbyist’s hunch uncovered hidden Roman military camps
An amateur archaeologist, armed only with satellite images and a hunch, has helped uncover evidence that is reshaping the way historians understand the advance of the Roman Empire into present-day Germany in the third century CE.
In 2020, amateur Michael Barkowski was browsing aerial images available online when he spotted an unusual formation near the town of Aken in the northwestern German state of Saxony-Anhalt. Barkowski suspected that the large rectangular outlines and apparent ditches he saw might be signs of marching camps commonly deployed by Roman legions. Although remnants of such camps had been identified elsewhere in Germany, historians had found no trace of them this far north.
After Barkowski reported the sightings, professional archaeologists from the German State Office for Heritage Management and Archeology in Saxony-Anhalt conducted their own aerial surveys. Their findings confirmed Barkowski’s intuition – and then some. Subsequent investigations revealed not only one, but four According to the German State Office for Heritage Management and Archeology Saxony, Roman marching camps have been widespread in towns across the state since the 200s CE.
These surprise discoveries, which the State Office calls an “archaeological sensation,” have major implications. Specifically, they suggest that the Roman Empire may have advanced much further into Germanic territory than previously thought. They are also just the latest in a series of archaeological breakthroughs made possible by the increased efforts of volunteers and the wide availability of modern aerial imagery.
Roman soldiers left behind some camps
The Roman Legion, the empire’s main elite infantry unit, is often defined by its strict discipline and organization in combat. Their military camps were no different. Soldiers established outposts at the end of a day’s march to serve as defensive positions during long military campaigns. The camps were generally rectangular with rounded corners and a door adorning each side. Each camp was distinguished by a titulum (essentially a low embankment and ditch built just outside the main gate) to slow or stop an enemy’s advance. The camps varied in size, but a typical installation could accommodate around 300 soldiers. A traveler passing through one of the camps would find the commander’s tent centrally located.
Historians have documented Roman camps scattered across much of the empire’s borderlands, where the army conducted the bulk of its campaigns. This included much of present-day Germany, which the Romans began to conquer around 13 CE under the Emperor Augustus. Fighting continued there for almost 30 years, before a major defeat forced the Romans to withdraw for a long time. Nearly 200 years later, in the 3rd century, the Romans returned to the region, launching a new military offensive aimed at disrupting the Germanic tribes that had become larger and more organized.
“Relations between the Romans and the Germanic tribes were subsequently characterized by defense against incursions into the Roman Empire, by punitive expeditions, but also by repeated contractual agreements and the settlement of Germanic tribes on Roman soil, as well as by the payment of money in exchange for maintaining the peace,” writes the German State Office for Heritage Management and Archeology Saxony in a press release.
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Observation of new camps changes the historical record
Although some historical records suggest that the late Roman advance may have reached as far north as the Elbe, archaeologists had found no physical remains to support these claims. This is what made the news of Barkowski’s initial discovery so enticing to professional archaeologists. Once they confirmed the presence of the first camp at Aken, they expanded their search area and found a similar structure near Trabitz, about 170 miles to the south. A year later, follow-up aerial surveys identified another structure near Aken and one in Deersheim.
These discoveries paved the way for a series of extensive field surveys carried out between 2024 and 2025. A team of archaeologists scoured the camps, metal detectors in hand, looking for artifacts. It was a scientific gold mine – or more accurately, an iron mine. The team documented more than 1,500 individual objects, most of them made of iron.
Artifacts include a variety of Roman coins and an unusually large number of nails and bolts. Researchers believe the nails and bolts were likely attached to the soles of soldiers’ sandals to increase traction. Radiocarbon dating of the objects places them at the beginning of the 3rd century, which coincides precisely with a military campaign launched in Germany by Emperor Caracalla.
The newly discovered camps provide concrete physical evidence for theories that were previously only suggested by letters and indirect artifacts. And none of this would have happened without a curious amateur looking through the footage.
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