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Marine Colliery Pumping Engine is a post-medieval and modern industrial monument located in Wales, protecting the engineering infrastructure of coal extraction in the South Wales coalfield. The site sits upon the South Wales Upper Coal Measures Formation, a Westphalian-age sequence of mudstone, siltstone and sandstone interspersed with workable coal seams, ironstone and ferricrete. This geology provided the foundation for substantial industrial development during the nineteenth and twentieth centuries.
The pumping engine represents the technological response required to manage water ingress in deep coal mining operations. As collieries descended into increasingly productive seams, removing groundwater became essential to maintain safe working conditions and continuous extraction. The engine's presence at Marine Colliery demonstrates the scale of mechanical innovation demanded by deep-pit mining in South Wales.
The monument is protected by Cadw, the Welsh heritage organisation, under reference MM218, recognising its significance to Wales's industrial heritage. The pumping engine survives as tangible evidence of the engineering expertise and industrial capacity that sustained the South Wales coalfield's prominence as a major source of coal during the modern period.
Marine Colliery Pumping Engine is a scheduled monument protected by Cadw under reference MM218. View the official record →
Marine Colliery Pumping Engine is a post-medieval and modern industrial monument located in Wales, protecting the engineering infrastructure of coal extraction in the South Wales coalfield. It is designated a Scheduled Ancient Monument by Cadw under reference MM218.
Marine Colliery Pumping Engine dates from the post medieval/modern period, and is classified as a colliery. It is one of over 32,000 scheduled monuments protected across the UK.
Marine Colliery Pumping Engine 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 MM218.
Several scheduled monuments lie within 10 km, including St Illtyd Castle Mound (3.7 km), Pen y Fan Canal Reservoir (3.9 km), St. Sannan's Churchayrd Cross, Bedwellty (4.6 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Marine Colliery Pumping Engine'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.
Marine Colliery Pumping Engine 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.