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Craig-y-Tyddyn Camp is a prehistoric hillfort situated on Ordovician felsic tuff bedrock in Wales. The underlying geology of unnamed extrusive rocks, formed during the Ordovician period, provides the stone foundation upon which the fort was constructed. This volcanic geology would have offered both practical building material and natural defensive properties for its inhabitants.
The site's elevated position and bedrock composition made it a strategic defensive location. The Ordovician felsic tuff—a consolidated volcanic deposit—would have weathered into workable stone suitable for rampart construction, a material readily available across the immediate landscape. Such natural advantages were characteristic considerations in Iron Age and Bronze Age settlement placement throughout Wales.
Craig-y-Tyddyn Camp is protected and recorded by Cadw, the Welsh heritage monuments authority, under reference CN046. This designation ensures the preservation of the site's archaeological integrity and recognition of its significance within Wales's prehistoric heritage. The hillfort remains an important example of Iron Age defensive settlement strategies adapted to the distinctive geological and topographical conditions of the Welsh uplands.
Craig-y-Tyddyn Camp is a scheduled monument protected by Cadw under reference CN046. View the official record →
Craig-y-Tyddyn Camp is a prehistoric hillfort situated on Ordovician felsic tuff bedrock in Wales. It is designated a Scheduled Ancient Monument by Cadw under reference CN046.
Craig-y-Tyddyn Camp dates from the prehistoric period, and is classified as a hillfort. It is one of over 32,000 scheduled monuments protected across the UK.
Craig-y-Tyddyn Camp 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 CN046.
Several scheduled monuments lie within 10 km, including Capel Gallt-Coed (4.2 km), Caer-Dynni Burial Chamber (4.6 km), Standing Stone N of Bettws Fawr (4.6 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Craig-y-Tyddyn Camp'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.
Craig-y-Tyddyn Camp stands on Unnamed Extrusive Rocks, Ordovician, bedrock that formed in the Ordovician. The rock here is felsic tuff.