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Nant-Cribau Castle Mound is a medieval motte situated in Wales on bedrock composed of Caradoc Rocks, a formation of mudstone, siltstone and sandstone laid down during the Caradocian period. The natural geology of this area, with its relatively stable sedimentary foundation, would have provided a suitable base for the construction of an earthwork castle during the medieval period. The motte represents a characteristic form of early medieval fortification, consisting of a raised mound that would have originally been crowned with timber or stone structures and surrounded by defensive ditches and palisades.
The monument stands as a testament to medieval military architecture in the Welsh landscape, embodying the strategic fortification practices employed by both Norman and Welsh lords during the period following the Norman conquest of Wales. Such mottes were typically erected rapidly to establish control over newly acquired territory, with their raised position offering commanding views across the surrounding lowland terrain and providing defensive advantage.
The site is now protected and managed by Cadw, the historic monuments service of Wales, under the reference MG148, ensuring the preservation of this important archaeological and historical resource for future generations.
Nant-Cribau Castle Mound is a scheduled monument protected by Cadw under reference MG148. View the official record →
Nant-Cribau Castle Mound is a medieval motte situated in Wales on bedrock composed of Caradoc Rocks, a formation of mudstone, siltstone and sandstone laid down during the Caradocian period. It is designated a Scheduled Ancient Monument by Cadw under reference MG148.
Nant-Cribau Castle Mound dates from the medieval period, and is classified as a motte. It is one of over 32,000 scheduled monuments protected across the UK.
Nant-Cribau Castle Mound 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 MG148.
Several scheduled monuments lie within 10 km, including Motte castle 400m north east of Upper Gwarthlow Farm (6.1 km), Offa's Dyke: Section from Dudston Covert, Lymore to Lack Brook, Churchstoke (7 km), Offa's Dyke: section NW of Ditches Farm Also in Powys: Wales (7.3 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Nant-Cribau Castle Mound'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.
Nant-Cribau Castle Mound stands on Caradoc Rocks (Undifferentiated), bedrock that formed in the Caradocian. The rock here is mudstone, siltstone and sandstone.