Scheduled MonumentsWalesCaer Gwanaf
Prehistoric · Enclosure

Caer Gwanaf

Wales
Cadw SAM GM070
Period
Prehistoric
Site type
Enclosure
Broad class
Monument
Nation
Wales
Boundary

Scheduled area

© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw

Overview

History & significance

Caer Gwanaf is a prehistoric enclosure located in Wales and protected by Cadw under reference GM070. The monument sits upon bedrock of Triassic rocks, comprising mudstone, siltstone and sandstone formed during the Triassic period. This geology would have presented distinct challenges and resources to the people who constructed and occupied the site, with the softer sedimentary stone offering some material for building but limited natural defensibility compared to harder rock formations found elsewhere in the region.

The enclosure's earthwork defences reflect the settlement patterns and social organisation of prehistoric Wales. Such monuments typically date to the Iron Age, though some may have earlier origins, and served as permanent or semi-permanent settlements, livestock corrals, or centres of local authority. The surrounding landscape, underlain by Triassic strata, would have supported mixed pastoral and arable economy typical of the period.

As a scheduled and protected monument, Caer Gwanaf remains an important archaeological record of prehistoric settlement in Wales. Its preservation allows study of construction techniques, land use and social development during the prehistoric period. The specific location and form of the enclosure contribute to broader understanding of how prehistoric communities adapted to and modified the Welsh landscape.

Caer Gwanaf is a scheduled monument protected by Cadw under reference GM070. View the official record →

About this monument

Questions & answers

What is Caer Gwanaf?

Caer Gwanaf is a prehistoric enclosure located in Wales and protected by Cadw under reference GM070.

What period does Caer Gwanaf date from?

Caer Gwanaf dates from the prehistoric period, and is classified as a enclosure. It is one of over 32,000 scheduled monuments protected across the UK.

Who is responsible for protecting Caer Gwanaf?

Caer Gwanaf 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 GM070.

What other scheduled monuments are near Caer Gwanaf?

Several scheduled monuments lie within 10 km, including Medieval House Site, Llantrithyd (7.3 km), Llantrithyd Place: remains of house, relict gardens and wells (7.3 km), Horseland moated homestead (7.7 km).

Unlimited access

Everything a full report reveals about Caer Gwanaf

This page is just one thread. A full Aubrey report pulls together 13 strands of Caer Gwanaf's history, each drawn from the record and mapped to the exact spot:

Overview
An interactive map of the location with every monument and battle plotted, and a plain-language history built only from what the record holds.
Monuments
The legally protected scheduled monuments around the location, each with its period, type and significance.
Battlefields
The battles and sieges fought on this ground, mapped and set on a timeline of the wider conflict.
Roman Britain
The Roman roads, forts and towns near here, and the Iron Age people who held the land before Rome arrived.
Civil War
The Civil War fighting, garrisons and recorded militaria in this area, woven into the arc of 1642 to 1651.
Geology
The bedrock beneath the site, its age and rock type, reaching back hundreds of millions of years.
Local Names
What the street and field names around here actually mean, and the history buried inside them.
Historical Maps
Ordnance Survey maps from the 1800s, layered over the location as it stands today.
Literature
The books, county histories, charters and archives that mention this place, quoted with their sources.
Legal
The protected sites nearby and the metal-detecting, access and treasure laws that apply to this ground.
Spotlight
A deep dive into the most remarkable, lesser-known history of the place, traced back to the record.
Target Zones
For detectorists: the most promising ground to search nearby, ranked by confidence, with what to expect.
Timeline
The whole story of the location told era by era, from prehistory to the present day.
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Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.

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The ground beneath

The bedrock under Caer Gwanaf

Caer Gwanaf stands on Triassic Rocks (Undifferentiated), bedrock that formed in the Triassic. The rock here is mudstone, siltstone and sandstone.

The wider landscape

Around Caer Gwanaf

Caerphilly CastleArchaeological site · ~8 miles