The wall ditch at Limestone Corner

Limestone Corner is an area of Hadrian's Wall (and associated defences) at its most northerly point, in present-day Great Britain. It represents the most northerly point of the Roman Empire, outside the two periods during which the Antonine Wall was occupied by the Roman military.^[2] Other notable features at Limestone Corner are the wall ditch at this point, which was never completely excavated, a Roman camp and the site of Milecastle 30. Also present is a trig point.^[3] The B6318 Military Road also runs through Limestone Corner,^[4] as does the Military Way, serving Milecastle 30. The Military Way is visible on the ground at this point, the most eastern point where this is the case.^[3]

• http://en.wikipedia.org/wiki/Limestone Corner