The
Antonine Wall was a
turf fortification on stone foundations, built by the
Romans across what is now the
Central Belt of
Scotland, between the
Firth of Forth and the
Firth of Clyde. Representing the northernmost frontier barrier of the
Roman Empire, it spanned approximately and was about high and wide. Security was bolstered by a deep
ditch on the northern side. It is thought that there was a wooden
palisade on top of the turf. The barrier was the second of two "great walls" created by the Romans in Northern Britain. Its ruins are less evident than the better-known
Hadrian's Wall to the south, primarily because the turf and wood wall has largely weathered away, unlike its stone-built southern predecessor.