Turret 73A (Burgh Marsh) was one of the small stone watch towers spaced at third-mile intervals along Hadrian's Wall, situated west of the fort at Burgh-by-Sands (Aballava) on the low-lying ground approaching the Solway Firth. It would have been built in the 120s AD as part of the original Hadrianic scheme and likely manned, with interruptions, into the later 2nd or 3rd century, functioning as a signalling and observation post overlooking the marshland and tidal flats.
Source: Pleiades — A Community-Built Gazetteer and Graph of Ancient Places. View the Pleiades record →
In this westernmost sector the Wall watched a coastline rather than a hostile hinterland, and turrets like 73A formed part of the integrated surveillance system extending down the Cumbrian coast as far as Maryport, monitoring movement across the Solway fords used by raiders from southwest Scotland.
The turret has not been securely located or excavated on the ground; its position is inferred from the standard Hadrianic spacing west of Milecastle 73, and centuries of coastal erosion, alluviation, and the shifting course of the Eden estuary may well have destroyed or buried any remains. No structural detail or finds assemblage specific to this turret is recorded in the published literature.
Turret 73A (Burgh Marsh) was one of the small stone watch towers spaced at third-mile intervals along Hadrian's Wall, situated west of the fort at Burgh-by-Sands (Aballava) on the low-lying ground approaching the Solway Firth. It is recorded in the Pleiades gazetteer of ancient places as a watch tower site from the Roman period in Britain.
Turret 73A is classified as a Roman watch tower — 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 Milecastle 73 (Dykesfield) (0.4 km), Turret 73B (0.5 km), Turret 72B (Rindle Hill) (1 km). Aubrey Research maps over 2,200 Roman sites across Britain, drawn from the Pleiades ancient world gazetteer.
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