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Odyn Jac Limekilns is a post-medieval and modern industrial monument situated in Wales and protected by Cadw under reference CM273. The site exploits the geological resources of its immediate locality, built upon Lower Devonian rocks of undifferentiated character, comprising sandstone and conglomerate deposited during the Early Devonian period. These interbedded formations provided both the limestone feedstock and stable bedrock necessary for lime production.
Limekilns of this type represent a widespread rural industry across Britain from the medieval period onwards, intensifying during the eighteenth and nineteenth centuries as demand for lime increased for agricultural improvement, building mortar, and industrial purposes. The kilns typically operated on a seasonal basis, with local labour and draught animals transporting raw limestone to the site for burning at high temperatures, transforming the stone into quicklime and slaked lime.
The survival of Odyn Jac as a recorded monument reflects the enduring landscape impact of Wales's lime-burning heritage. Such kilns often operated at multiple locations within a single parish, their remnants—fragmentary stone structures, calcified debris, and waste products—preserving evidence of rural economy and settlement patterns now lost to memory. The monument's protection acknowledges its significance as physical testimony to the practical ingenuity and resource management of post-medieval Welsh communities.
Odyn Jac Limekilns is a scheduled monument protected by Cadw under reference CM273. View the official record →
Odyn Jac Limekilns is a post-medieval and modern industrial monument situated in Wales and protected by Cadw under reference CM273.
Odyn Jac Limekilns dates from the post medieval/modern period, and is classified as a limekiln. It is one of over 32,000 scheduled monuments protected across the UK.
Odyn Jac Limekilns 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 CM273.
Several scheduled monuments lie within 10 km, including Garnbwll Limekiln (0.5 km), Maesdulais Limekilns (1.7 km), Mynydd Llangyndeyrn Burial Chamber (1.9 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Odyn Jac Limekilns'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.
Odyn Jac Limekilns stands on Lower Devonian Rocks (Undifferentiated), bedrock that formed in the Early Devonian. The rock here is sandstone and conglomerate, interbedded.