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Clyne Wood Colliery Steam Winding Machine is a post-medieval industrial monument in Wales, protected by Cadw under reference GM469. The colliery exploited the productive coal seams of the South Wales coalfield, which lie within the Lower Coal Measures Formation of Westphalian age. These measures comprise alternating bands of mudstone, siltstone and sandstone interspersed with worked coal seams, ironstone and ferricrete—a distinctive mineral combination that characterises this geological horizon across the region.
The steam winding machine represents the technological innovations that transformed South Wales into one of Britain's leading coal producers during the nineteenth and twentieth centuries. Winding machines were essential pit-head equipment, powered by steam engines to raise coal and miners from underground workings. The preservation of this machinery provides evidence of the mechanical systems that underpinned the region's industrial prosperity and the scale of operations required to extract coal from these thick, accessible seams.
The site's landscape and geology directly shaped its development as a colliery. The thick coal measures underlying the area made Clyne Wood commercially viable, whilst the siltstone and sandstone strata provided stable ground for pit infrastructure. The surviving steam winding machine is a tangible record of extractive industry in Wales and the engineering solutions deployed to access mineral wealth from the Pennine and South Wales coal seams.
Clyne Wood Colliery Steam Winding Machine is a scheduled monument protected by Cadw under reference GM469. View the official record →
Clyne Wood Colliery Steam Winding Machine is a post-medieval industrial monument in Wales, protected by Cadw under reference GM469.
Clyne Wood Colliery Steam Winding Machine 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.
Clyne Wood Colliery Steam Winding Machine 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 GM469.
Several scheduled monuments lie within 10 km, including Clyne Valley Shaft Mounds (0.6 km), Clyne Wood Coal Level (1.2 km), Clyne Wood Arsenic & Copper Works (1.6 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Clyne Wood Colliery Steam Winding Machine'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.
Clyne Wood Colliery Steam Winding Machine 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.