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Minera Halvans Plant is a post-medieval and modern lead mine located in Wales. The site lies upon bedrock of the Pennine and South Wales Lower Coal Measures Formation, a Westphalian sequence of mudstone, siltstone, sandstone, coal, ironstone and ferricrete that provided both the geological setting and mineral resources for extraction. Lead mining in this region took advantage of ore deposits within these coal measure strata, a geological circumstance that shaped both the feasibility and character of working at Halvans.
The plant represents the industrial infrastructure of lead extraction and processing during the post-medieval period through to modern times. Such installations typically comprised mine shafts, processing buildings, storage facilities and associated structures necessary for ore extraction, concentration and transport. The site's survival and condition have warranted its protection by Cadw under reference DE242, recognising its significance as a record of Wales's industrial mining heritage and technological development.
Today Minera Halvans Plant stands as a physical reminder of the intensive mineral extraction that characterised parts of the Welsh landscape. The site documents the relationship between geological circumstances and human enterprise, showing how accessible ore deposits in the coal measures were exploited to supply raw materials for industrial Britain.
Minera Halvans Plant is a scheduled monument protected by Cadw under reference DE242. View the official record →
Minera Halvans Plant is a post-medieval and modern lead mine located in Wales. It is designated a Scheduled Ancient Monument by Cadw under reference DE242.
Minera Halvans Plant dates from the post medieval/modern period, and is classified as a lead mine. It is one of over 32,000 scheduled monuments protected across the UK.
Minera Halvans Plant 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 DE242.
Several scheduled monuments lie within 10 km, including Offa's Dyke: Y Gardden Camp Section (7.4 km), Offa's Dyke: Section SW from Tatham Bridge (8.2 km), Wynnstay Colliery Walker Fan House (8.4 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Minera Halvans Plant'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.
Minera Halvans Plant stands on Pennine Lower Coal Measures Formation And South Wales Lower Coal Measures Formation (Undifferentiated), bedrock that formed in the Westphalian. The rock here is mudstone, siltstone, sandstone, coal, ironstone and ferricrete.