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Venallt Ironworks is a post-medieval ironworks site protected by Cadw under reference GM423. Located in Wales, the works exploited the rich mineral resources of the underlying Pennine and South Wales Lower Coal Measures, which provided the mudstone, siltstone, sandstone, coal, ironstone and ferricrete essential to iron production. These Westphalian-age deposits furnished both the raw materials and the fuel necessary for smelting operations, making the site's location geologically advantageous for industrial development during the period of expansion in Welsh iron manufacture.
The surviving remains represent the physical infrastructure of iron production and are evidence of Wales's significant role in the post-medieval and modern industrial economy. The site's archaeological importance lies in documenting the methods, scale and organisation of ironworking during this period of technological and commercial growth. The preservation of structural features within the landscape provides insight into the industrial processes and working conditions that characterised Welsh ironworks.
Remains of Venallt Ironworks is a scheduled monument protected by Cadw under reference GM423. View the official record →
Venallt Ironworks is a post-medieval ironworks site protected by Cadw under reference GM423.
Remains of Venallt Ironworks dates from the post medieval/modern period, and is classified as a ironworks. It is one of over 32,000 scheduled monuments protected across the UK.
Remains of Venallt Ironworks 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 GM423.
Several scheduled monuments lie within 10 km, including Bryn Llydan Round Barrow (4.5 km), Carn Caglau cairn (4.5 km), Camp 280m S of Melin Court Brook (5.6 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Remains of Venallt Ironworks'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.
Remains of Venallt Ironworks 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.