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Dinas Silica Mine is a post-medieval and modern tramroad located in Wales. The site sits upon Millstone Grit Group bedrock, comprising mudstone, siltstone and sandstone deposits laid down during the Namurian period. This geological foundation reflects the industrial geology that made the location valuable for mineral extraction and processing.
The tramroad represents the transport infrastructure essential to silica mining operations from the post-medieval period through the modern era. Such tramroads were purpose-built to move extracted materials and finished products efficiently from the mine workings to distribution points, typically incorporating gradients and track systems designed for the local topography. The Millstone Grit geology would have provided workable stone suitable for industrial silica operations.
The monument is protected by Cadw under reference BR229, acknowledging its historical significance as evidence of Wales's industrial heritage. Silica mining and processing formed an important part of local and regional economies, and the physical remains of associated infrastructure such as tramroads preserve the technological and commercial systems that supported these extractive industries in post-medieval and modern Wales.
Dinas Silica Mine is a scheduled monument protected by Cadw under reference BR229. View the official record →
Dinas Silica Mine is a post-medieval and modern tramroad located in Wales. It is designated a Scheduled Ancient Monument by Cadw under reference BR229.
Dinas Silica Mine dates from the post medieval/modern period, and is classified as a tramroad. It is one of over 32,000 scheduled monuments protected across the UK.
Dinas Silica Mine 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 BR229.
Several scheduled monuments lie within 10 km, including Craig y Bwlch round cairn (5.1 km), Tarren y Bwlch round cairn (5.6 km), Ffos Toncenglau cross ridge dyke (5.8 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Dinas Silica Mine'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.
Dinas Silica Mine stands on Millstone Grit Group [See Also Migr], bedrock that formed in the Namurian. The rock here is mudstone, siltstone and sandstone.