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Wynnstay Colliery Winding Engine House is a post-medieval and modern industrial structure located in Wales, protected by Cadw as a scheduled monument under reference DE190. The engine house served the mechanical extraction of coal from underground workings, a critical function in the coal mining operations that shaped the Welsh industrial landscape from the 18th century onwards. The structure stands upon bedrock of the Pennine Middle Coal Measures Formation and South Wales Middle Coal Measures Formation, a geological sequence of mudstone, siltstone, sandstone, coal seams, ironstone and ferricrete deposited during the Moscovian period of the Carboniferous. This productive coalfield geology made the location economically viable for extraction, and the presence of an engine house indicates sustained underground mining at Wynnstay.
The winding engine house represents the technological investment required to develop deep coal mines efficiently. Such structures housed powerful steam-driven or later diesel-powered engines that hauled loaded coal cages vertically up shafts, enabling miners to work at greater depths and increasing output substantially. The engine house's construction and design reflect the engineering standards of its period of operation, making it a significant record of industrial heritage and mining technology in Wales.
Wynnstay Colliery Winding Engine House is a scheduled monument protected by Cadw under reference DE190. View the official record →
Wynnstay Colliery Winding Engine House is a post-medieval and modern industrial structure located in Wales, protected by Cadw as a scheduled monument under reference DE190.
Wynnstay Colliery Winding Engine House dates from the post medieval/modern period, and is classified as a engine house. It is one of over 32,000 scheduled monuments protected across the UK.
Wynnstay Colliery Winding Engine House 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 DE190.
Several scheduled monuments lie within 10 km, including A 1.43km length of the Ellesmere Canal and associated features at Chirk Bank (6.2 km), Motte castle adjacent to Oaklands Hall, Chirk Bank (6.3 km), Roman military site at Rhyn Park (6.4 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Wynnstay Colliery Winding Engine House'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.
Wynnstay Colliery Winding Engine House stands on Pennine Middle Coal Measures Formation And South Wales Middle Coal Measures Formation (Undifferentiated), bedrock that formed in the Moscovian. The rock here is mudstone, siltstone, sandstone, coal, ironstone and ferricrete.