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Mill Wood Castle Mound is a medieval motte located in Wales and protected by Cadw under the reference MM114. The mound rises from bedrock composed of Pridoli rocks—undifferentiated mudstone, siltstone and sandstone formations dating to the Pridoli period. These varied sedimentary layers provided the local geological foundation upon which the earthwork was constructed, their softer composition allowing for excavation and mounding during medieval times.
The motte represents a characteristic Norman military engineering response to Welsh territories, consisting of a raised earthen mound that would have supported a wooden palisade and tower structure. The strategic placement of such mottes typically commanded local routes and settlements, serving as strongholds for control and administration of surrounding lands during the medieval period.
Today the monument survives as an earthwork testament to medieval defensive architecture. The underlying Pridoli geology, exposed in places across the Welsh landscape, has influenced both the construction techniques available to medieval builders and the long-term preservation of the mound itself. As a scheduled ancient monument, Mill Wood Castle Mound remains an important archaeological record of medieval settlement and military organisation in Wales.
Mill Wood Castle Mound is a scheduled monument protected by Cadw under reference MM114. View the official record →
Mill Wood Castle Mound is a medieval motte located in Wales and protected by Cadw under the reference MM114.
Mill Wood 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.
Mill Wood 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 MM114.
Several scheduled monuments lie within 10 km, including Early Iron Furnace in Woolpitch Wood (6.3 km), Harold's Stones, Standing Stones (6.6 km), Trellech Shrunken Medieval Village (6.8 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Mill Wood 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.
Mill Wood Castle Mound stands on Pridoli Rocks (Undifferentiated), bedrock that formed in the Pridoli. The rock here is mudstone, siltstone and sandstone.