The Cumbrian Coast defences formed a southward extension of Hadrian's Wall down the Solway shore, established in the AD 120s under Hadrian to seal the open western flank where the Wall proper ended at Bowness-on-Solway. Rather than a continuous curtain, the system comprised a chain of milefortlets and stone watchtowers (paired between each fortlet, mirroring the milecastle/turret spacing on the Wall itself) backed by larger forts at Beckfoot, Maryport (Alauna), Burrow Walls, and Moresby (Gabrosentum). It remained in use, with phases of contraction and reoccupation, into the later 4th century, though the milefortlet system itself was largely abandoned by the late 2nd century.
Source: Pleiades — A Community-Built Gazetteer and Graph of Ancient Places. View the Pleiades record →
The line demonstrates that Hadrian's frontier was conceived as a controlled zone extending beyond the masonry Wall, monitoring seaborne movement across the Solway and from southwest Scotland — a reminder that the Wall system was as much about surveillance and control of movement as about repelling massed attack. Maryport in particular became a major military and religious centre, yielding the largest single corpus of Roman altars from Britain.
Milefortlets 1, 5, 9, 20, and 21 have been investigated (notably MF 5 Cardurnock and MF 21 Swarthy Hill), confirming timber-and-turf construction comparable to Hadrianic mil
The Cumbrian Coast defences formed a southward extension of Hadrian's Wall down the Solway shore, established in the AD 120s under Hadrian to seal the open western flank where the Wall proper ended at Bowness-on-Solway. It is recorded in the Pleiades gazetteer of ancient places as a frontier / wall site from the Roman period in Britain.
Hadrian's Wall (Cumbrian Coast) is classified as a Roman frontier / wall — a military site in the Pleiades ancient world gazetteer. Roman Britain's archaeology encompasses thousands of sites ranging from legionary fortresses and marching camps to villas, temples and towns.
Several Roman sites lie within a short distance, including Skinburness (2.6 km), Palisade ditches, part of Roman frontier defences along Cumbrian coast, Roman camp & road and part of Romano-British field system, 250m north of Silloth Farm (2.7 km), Blitterlees (milefortlet 12), part of the Roman frontier defences along the Cumbrian coast (3.8 km). Aubrey Research maps over 2,200 Roman sites across Britain, drawn from the Pleiades ancient world gazetteer.
Aubrey Research generates detailed historical reports for any location in Britain, incorporating Roman heritage, Domesday Book records, scheduled monument data, archaeological finds and much more. Enter a nearby address to begin.
Aubrey generates in-depth historical research for any address in Britain — drawing on Roman heritage, Domesday records, scheduled monument data, archaeological finds and medieval history to reveal the complete story of a landscape.
Research the area around Hadrian's Wall (Cumbrian Coast)