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Roman Fort 300m NW of Pen-Llwyn is a Roman military installation sited on high ground in central Wales. The fort is protected as a scheduled monument by Cadw under reference CD134. Its strategic position on undulating terrain reflects the Roman army's need to command important routes through the upland landscape during their occupation of Wales in the first and second centuries AD.
The fort sits on bedrock of Llandovery Rocks, composed of mudstone, siltstone and sandstone formed in the Llandovery period. This underlying geology of relatively soft sedimentary rock would have presented particular challenges for the substantial timber and later stone fortifications typical of such installations, requiring careful construction and drainage management to withstand the wet Welsh climate.
The fort's location in the Welsh interior places it within a network of Roman military posts established to control and protect the conquest of Wales. Such forts typically accommodated auxiliary troops, served as bases for patrols and operations across difficult terrain, and functioned as collection and distribution points for supplies moving through this remote region of the Roman province of Britannia.
Roman Fort 300m NW of Pen-Llwyn is a scheduled monument protected by Cadw under reference CD134. View the official record →
Roman Fort 300m NW of Pen-Llwyn is a Roman military installation sited on high ground in central Wales. It is designated a Scheduled Ancient Monument by Cadw under reference CD134.
Roman Fort 300m NW of Pen-Llwyn dates from the roman period, and is classified as a fort. It is one of over 32,000 scheduled monuments protected across the UK.
Roman Fort 300m NW of Pen-Llwyn 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 CD134.
Several scheduled monuments lie within 10 km, including Gors Defended Enclosure (4.2 km), Castle Hill Sculptured Stone (Moved into Llanilar Church) (6.2 km), Pant Mawr Hillfort (6.4 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Roman Fort 300m NW of Pen-Llwyn'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.
Roman Fort 300m NW of Pen-Llwyn stands on Llandovery Rocks (Undifferentiated), bedrock that formed in the Llandovery. The rock here is mudstone, siltstone and sandstone.