Castra of Osterburken, Roman archaeological site in Osterburken, Germany.
The Castra of Osterburken is a Roman military installation in present-day Baden-Württemberg, made up of a main fort and an attached annex fort whose stone foundations, ditches, and wall sections are still visible today. The remains sit on a gentle rise and cover a broad area that is now open to the public as the Limes-Park.
The fort was built in the 2nd century when Rome was reinforcing its northern frontier in the province of Germania Superior through a chain of fortifications now known as the Upper Germanic-Raetian Limes. The annex fort was added later, most likely to house additional troops or supply units.
The site sits within the Limes-Park Osterburken, where visitors can walk along the preserved stone foundations and read the layout of both fort sections directly from the ground. Information panels explain in plain language what daily life for the soldiers stationed here may have looked like.
The grounds are easy to walk through, though sturdy footwear is a good idea since some sections have uneven or unpaved paths. A reconstructed Roman watchtower on site gives a clear sense of how the frontier structures once looked.
While most Roman forts along the Limes had a single enclosure, Osterburken features an attached annex that is thought to have served a cavalry unit needing extra space for horses and equipment. This feature is rare along the entire length of the Limes and makes the site especially interesting for researchers.
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