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Hermon or Dolfwynog Copper/Gold Bog Kiln is a post-medieval and modern kiln located in Wales, protected as a scheduled monument by Cadw under reference ME198. The structure stands upon bedrock of Upper Cambrian age, specifically Tremadoc formation rocks comprising mudstone, siltstone and sandstone laid down during the Tremadocian period. These fine-grained sediments underlie the bog terrain where the kiln was constructed.
The kiln represents an early industrial response to mineral extraction in Wales, where copper and gold working became increasingly important from the post-medieval period onwards. Bog kilns of this type were specifically situated in waterlogged or wetland locations, which provided both water for processing and peat fuel for heating. The Tremadoc geology of the surrounding area would have influenced both water drainage patterns and the character of the peat deposits available for exploitation.
The monument's designation reflects the significance of early metal-working technologies in Welsh industrial heritage. The survival of such kilns provides important evidence for understanding small-scale metalworking practices and the relationship between local geology, available fuel sources and industrial location in the Welsh landscape during this period of expanding mineral extraction.
Hermon or Dolfwynog Copper/Gold Bog Kiln is a scheduled monument protected by Cadw under reference ME198. View the official record →
Hermon or Dolfwynog Copper/Gold Bog Kiln is a post-medieval and modern kiln located in Wales, protected as a scheduled monument by Cadw under reference ME198.
Hermon or Dolfwynog Copper/Gold Bog Kiln dates from the post medieval/modern period, and is classified as a kiln. It is one of over 32,000 scheduled monuments protected across the UK.
Hermon or Dolfwynog Copper/Gold Bog Kiln 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 ME198.
Several scheduled monuments lie within 10 km, including Moel Offrwm Camp (4.6 km), Moel Offrwm Lower Camp (4.9 km), Foel Faner Defended Enclosure (5.1 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Hermon or Dolfwynog Copper/Gold Bog Kiln'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.
Hermon or Dolfwynog Copper/Gold Bog Kiln stands on Upper Cambrian, Including Tremadoc, bedrock that formed in the Tremadocian. The rock here is mudstone, siltstone and sandstone.