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Great House Camp is a prehistoric hillfort in Wales, protected by Cadw as a scheduled monument under reference MM105. The site exploits the natural defensive properties of Lower Devonian bedrock, comprising mudstone, siltstone and sandstone formations that underlie the Welsh landscape. This Early Devonian geology shaped the topography which the hillfort's builders utilised, creating a stronghold whose ramparts and ditches were cut into or built upon these ancient rocks.
Hillforts of this type, typically constructed during the Iron Age though some occupied earlier, commanded elevated positions across the Welsh uplands. Great House Camp's situation on this particular geological foundation would have provided both practical advantages for defence and stable ground for constructing substantial earthworks. The local stone would have been available for any structural reinforcement of the fortifications.
The monument survives as a testament to prehistoric settlement patterns and territorial control in Wales, its earthen defences still visible within the landscape. As a scheduled monument, Great House Camp is protected to preserve evidence of the communities who built and inhabited it, allowing future study of these important Iron Age centres of power and refuge.
Great House Camp is a scheduled monument protected by Cadw under reference MM105. View the official record →
Great House Camp is a prehistoric hillfort in Wales, protected by Cadw as a scheduled monument under reference MM105.
Great House 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.
Great House 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 MM105.
Several scheduled monuments lie within 10 km, including Gaer-Llwyd Burial Chamber (6.7 km), Chepstow Park Wood Moated Site (7.8 km), Chepstow Park Wood Cairn (8.2 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Great House 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.
Great House Camp stands on Lower Devonian Rocks (Undifferentiated), bedrock that formed in the Early Devonian. The rock here is mudstone, siltstone and sandstone.