Milecastle 76 (Drumburgh) was one of a series of Milecastles or small fortlets built at intervals of approximately one Roman mile along Hadrian’s Wall. The mile fort was on the eastern outskirts of Drumburgh, probably about 200 meters east of the Concavata fort , on the slope above an abandoned railway line. The exact location has not yet been confirmed archaeologically. A slight, irregular elevation can be seen at the presumed location, but it is unclear whether it is actually the remains of the mile fort. In 1962, about 100 meters to the east, the remains of Hadrian’s Wall were still visible in the swamps of the Burgh Marsh.