Ancient Monuments

History on the Ground

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Castle Earthwork 200m south of Coed Caeau

A Scheduled Monument in Erwood (Errwd), Powys

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Latitude: 52.0618 / 52°3'42"N

Longitude: -3.3738 / 3°22'25"W

OS Eastings: 305910

OS Northings: 241271

OS Grid: SO059412

Mapcode National: GBR YP.DCRF

Mapcode Global: VH6BD.GFRS

Entry Name: Castle Earthwork 200m S of Coed Caeau

Scheduled Date:

Source: Cadw

Source ID: 3360

Cadw Legacy ID: BR179

Schedule Class: Defence

Category: Ringwork

Period: Medieval

County: Powys

Community: Erwood (Errwd)

Traditional County: Brecknockshire


The monument consists of the remains of a castle ringwork, dating to the medieval period. The site comprises a sub-circular, univallate, enclosure measuring 85m in diameter. A V-shaped ditch, up to 4m deep encircles the site, with an outer bank, up to 1.25m high, visible around much of the circumference of the monument. A causeway crosses the ditch on the SE side, leading into the interior of the site which comprises a level platform 50m in diameter. The interior is enclosed by high banks to the N and S of the entrance which stand 6m above the base of the ditch and 2m high on the internal side. The northern internal bank extends for around 40 to the NNW, while the southern internal bank only extend for 20m. In the interior of the monument the ground is undulating which may be a result of erosion rather than an indication of internal features.

The monument is of national importance for its potential to enhance our knowledge of medieval defensive practices. The monument is well-preserved and an important relic of the medieval landscape. It retains significant archaeological potential, with a strong probability of the presence of both structural evidence and intact associated deposits.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

Source: Cadw

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