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Diffwys Quarry is a post-medieval and modern industrial quarry located in Conwy, Wales, designated as a scheduled ancient monument under Cadw reference CN413. The quarry represents the exploitation of local stone resources during the post-medieval period and subsequent industrial expansion, reflecting the economic development of the region through extractive industries. Its physical character comprises the characteristic features of quarrying operations, including worked stone faces and associated extraction remains that document the methods and scale of quarrying activity across this period.
Diffwys Quarry is a scheduled monument protected by Cadw under reference CN413. View the official record →
Diffwys Quarry is a post-medieval and modern industrial quarry located in Conwy, Wales, designated as a scheduled ancient monument under Cadw reference CN413.
Diffwys Quarry dates from the post medieval/modern period, and is classified as a quarry. It is one of over 32,000 scheduled monuments protected across the UK.
Diffwys Quarry is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is CN413.
Several scheduled monuments lie within 10 km, including Enclosed Hut Group at Nurse Cae Du (7.2 km), Castell Tomen y Mur (7.4 km), Tomen y Mur (7.5 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Diffwys Quarry's history, each drawn from the record and mapped to the exact spot:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Diffwys Quarry stands on Caradoc Rocks (Undifferentiated), bedrock that formed in the Caradocian. The rock here is mudstone, siltstone and sandstone.