Calcaria was a small Roman civilian settlement on Ermine Street (the road from Eboracum/York to Isurium Brigantum/Aldborough), located at or near modern Tadcaster in West Yorkshire. The name derives from Latin *calx* ("lime/limestone"), reflecting the local Magnesian Limestone outcrop that was quarried here from the Roman period onwards. It was likely active from the later 1st century AD, following the Roman advance into Brigantian territory under Cerialis and Agricola, through to the late Roman period.
Source: Pleiades — A Community-Built Gazetteer and Graph of Ancient Places. View the Pleiades record →
Calcaria's importance was primarily economic and logistical: it supplied building stone to York and other military and civilian centres in the region, and functioned as a roadside settlement and probable river crossing on the Wharfe, controlling traffic along a major north–south route. It appears in the Antonine Itinerary (Iter II), confirming its recognised status as a posting station.
Evidence remains relatively limited owing to continuous occupation at Tadcaster, but Roman finds — coins, pottery, burials, and traces of stone structures — have been recovered within and around the town, with quarrying scars and a road alignment supporting its identification. No systematic large-scale excavation has clarified the settlement's full plan or extent.
Calcaria was a small Roman civilian settlement on Ermine Street (the road from Eboracum/York to Isurium Brigantum/Aldborough), located at or near modern Tadcaster in West Yorkshire. It is recorded in the Pleiades gazetteer of ancient places as a settlement site from the Roman period in Britain.
Calcaria is classified as a Roman settlement — a civilian 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 Roman villa (3.1 km), Two Roman forts, two Roman camps, vicus, Iron Age enclosure, Bronze Age barrows and Neolithic henge monument west of Newton Kyme (3.3 km), Newton Kyme (3.6 km). Aubrey Research maps over 2,200 Roman sites across Britain, drawn from the Pleiades ancient world gazetteer.
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