The walls of Glannoventa Roman fort once enclosed a four-acre square just south of Ravenglass village, overlooking the harbour where the Esk, Mite, and Irt meet. Built around AD 130, the fort housed an auxiliary unit of around 500 men and served as the naval terminus for the western flank of Hadrian's Wall.
There is almost nothing to see today — the visible site is a low rise in a field, the visible Roman fabric having been ploughed out long ago. But it gives the only context for the much better-preserved bath house in the wood next door, which served this fort. A small interpretive panel marks the spot.