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Charcoal Blast Furnace at Abercarn is a post-medieval ironworks monument located in Wales. Built to exploit the rich mineral resources of the locality, the furnace operated within a landscape of exceptional geological advantage. The bedrock beneath the site comprises the South Wales Upper Coal Measures Formation, a Westphalian deposit of mudstone, siltstone and sandstone interbedded with coal seams and ironstone—precisely the raw materials needed for iron smelting. This geological concentration of coal and iron ore made the Abercarn site particularly valuable for industrial exploitation.
The charcoal blast furnace represents the technological approach to iron production that prevailed before the widespread adoption of coke smelting. The structure would have required substantial volumes of charcoal fuel and iron ore extracted from the immediately surrounding strata. The ferricrete deposits within the Coal Measures provided additional iron-rich material suitable for smelting.
The monument survives as a testament to Wales's industrial heritage during the period of charcoal-based iron production. It is protected by Cadw under reference MM250, recognising its importance to understanding post-medieval metallurgical practice and industrial archaeology in South Wales. The site's preservation allows study of iron manufacture before the coal-dependent industrial revolution that would later transform the region.
Charcoal Blast Furnace at Abercarn is a scheduled monument protected by Cadw under reference MM250. View the official record →
Charcoal Blast Furnace at Abercarn is a post-medieval ironworks monument located in Wales. It is designated a Scheduled Ancient Monument by Cadw under reference MM250.
Charcoal Blast Furnace at Abercarn dates from the post medieval/modern period, and is classified as a blast furnace. It is one of over 32,000 scheduled monuments protected across the UK.
Charcoal Blast Furnace at Abercarn 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 MM250.
Several scheduled monuments lie within 10 km, including St. Michael's Churchyard Cross, Machen (6.9 km), Gwern-y-Domen Castle Mound (8.1 km), Ruperra Hillfort and Motte (8.2 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Charcoal Blast Furnace at Abercarn'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.
Charcoal Blast Furnace at Abercarn stands on South Wales Upper Coal Measures Formation, bedrock that formed in the Westphalian. The rock here is mudstone, siltstone, sandstone, coal, ironstone and ferricrete.