Scheduled MonumentsWalesForden Gaer Roman Site
Roman · Fort

Forden Gaer Roman Site

Wales
Cadw SAM MG012
Period
Roman
Site type
Fort
Broad class
Defence
Nation
Wales
The designation
Reference
Cadw SAM MG012
Authority
Cadw
Designated
1978-05-25
Boundary

Scheduled area

© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw

Overview

History & significance

Forden Gaer is a Roman auxiliary fort located near Welshpool in Powys, Wales, dating to the first and second centuries AD. The site occupies a strategic position in the Severn Valley and was established as part of Rome's military infrastructure for the conquest and control of mid-Wales. The fort's defensive earthworks, comprising multiple ditches and ramparts, remain visible as substantial archaeological features in the landscape. Archaeological investigations have recovered finds consistent with occupation during the Roman period, contributing to understanding of Roman frontier deployment in Wales during the early Imperial era.

Forden Gaer Roman Site is a scheduled monument protected by Cadw under reference MG012. View the official record →

About this monument

Questions & answers

What is Forden Gaer Roman Site?

Forden Gaer is a Roman auxiliary fort located near Welshpool in Powys, Wales, dating to the first and second centuries AD. It is designated a Scheduled Ancient Monument by Cadw under reference MG012.

What period does Forden Gaer Roman Site date from?

Forden Gaer Roman Site dates from the roman period, and is classified as a fort. It is one of over 32,000 scheduled monuments protected across the UK.

Who is responsible for protecting Forden Gaer Roman Site?

Forden Gaer Roman Site 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 MG012.

What other scheduled monuments are near Forden Gaer Roman Site?

Several scheduled monuments lie within 10 km, including Camp S of Old Hall Sarn (9.1 km), Site 450m NW of Glan Mule (revealed by aerial photography) (9.2 km), Great Cloddiau Camp (9.3 km).

Unlimited access

Everything a full report reveals about Forden Gaer Roman Site

This page is just one thread. A full Aubrey report pulls together 13 strands of Forden Gaer Roman Site'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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The ground beneath

The bedrock under Forden Gaer Roman Site

Forden Gaer Roman Site stands on Caradoc Rocks (Undifferentiated), bedrock that formed in the Caradocian. The rock here is mudstone, siltstone and sandstone.