Turret 29a, known as Black Carts Turret, is one of the recessed stone turrets built into Hadrian's Wall in the 120s AD, situated on a prominent ridge in the Black Carts sector between Milecastles 29 (Tower Tye) and 30 (Limestone Corner). It is a standard Wall-period turret of roughly 4.3 m square internally, with walls bonded into a particularly well-preserved stretch of broad-gauge Wall curtain, and stood as a two-storey observation and signalling post manned by a small detachment from the nearest fort, likely Carrawburgh (Brocolitia) or Chesters (Cilurnum).
Source: Pleiades — A Community-Built Gazetteer and Graph of Ancient Places. View the Pleiades record →
The turret formed part of the integrated surveillance system of the Wall, providing line-of-sight communication along the central sector and overlooking the open ground to the north. The surrounding length of curtain wall here is among the best-preserved consolidated stretches in the central sector, making 29a a key visitor-accessible illustration of Wall-and-turret design.
The turret was excavated by John Clayton's workmen in the 19th century and re-examined and consolidated in the 20th century; it conforms to standard turret plan with a south-facing doorway, a stone platform/hearth, and evidence consistent with the common pattern of turret abandonment in the later 2nd or earlier 3rd century, when many central-sector turrets were demolished and their recesses walled up. Specific fin
Turret 29a, known as Black Carts Turret, is one of the recessed stone turrets built into Hadrian's Wall in the 120s AD, situated on a prominent ridge in the Black Carts sector between Milecastles 29 (Tower Tye) and 30 (Limestone Corner). It is recorded in the Pleiades gazetteer of ancient places as a watch tower site from the Roman period in Britain.
Turret 29A (Black Carts) 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 29 (Tower Tye) (0.5 km), Turret 29B (Limestone Bank) (0.5 km), Walwick Fell Roman temporary camp (0.7 km). Aubrey Research maps over 2,200 Roman sites across Britain, drawn from the Pleiades ancient world gazetteer.
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