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Offerton Roman Factory 'Hidden in Plain Sight' on River Wear

Over 800 Roman-period whetstones and 11 stone anchors were uncovered at Offerton, revealing a major industrial site supplying manufacturing and military needs.

  • Durham University researchers uncovered the Offerton assemblage, recovering more than 800 whetstones and 11 stone anchors at the largest Roman-period site in north-west Europe.
  • OSL testing of the whetstone layer dated activity to 104–238 AD, while sediment analysis led by Dr Eric Andrieux at Durham University’s Department of Archaeology found blanks through finished stones and a sandstone outcrop at Offerton indicating on-site quarrying and manufacture.
  • Sixty‑five 'doubles' and a rare 'treble' were recovered alongside chisels, stone splitters, and post‑medieval wooden and earlier stone-built jetties, plus a Tudor leather shoe.
  • With implications for regional history, researchers say the find could reshape understanding of Roman manufacturing and extend activity along the River Wear by over 1,800 years; further survey work is now needed.
  • This isn't just a Roman site, it's Sunderland's story, said Bankhead, as local volunteers and partners like The Crown Estate and Sunderland City Council collaborate; researchers believe hundreds, possibly thousands more whetstones remain buried.
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Ancient Roman factory found on English riverbank

The "extraordinary" discovery at the Offerton site, on the banks of the River Wear near Sunderland.

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Chronicle Live broke the news in Newcastle upon Tyne, United Kingdom on Wednesday, January 7, 2026.
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