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Cof Cymru: National Historic Assets of Wales · Wales

Blaen-Cwmbach Camp

Tonna, Neath Port Talbot, Wales

The record

Designation
Scheduled monument
Site type
Marching Camp
Period
Roman
Date of designation
19 January 1959
Community
Tonna
Unitary authority
Neath Port Talbot
Country
Wales
Coordinates (centre of the scheduled area)
51.67489, -3.74129
SAM number
GM258
Cadw record number
2886

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

Shown on 5 historical map sheets, the earliest the 1608 "(13) Cambriae Typus." (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

The following provides a general description of the Scheduled Ancient Monument.

The monument comprises the remains of a Roman marching camp which survives as extant sections of earthen bank forming part of its perimeter. There is a well-defined entrance on the west with associated tutulus, or entrance shielding bank and ditch. The camp has been attributed to the campaigns of Sextus Julius Frontinus during the period AD73-78. The camp is elongated in shape and measures 908m from WSW to ENE by about 295m transversely. The earthworks are best preserved on the WSW side. The bank in this sector has spread to a width of 3.1m and is a maximum of 0.9m high from the exterior. The tutlus is located 13.7m in front of the entrance with a bank 3.1m wide and ditch 1.8m wide and measures 7.6m in length. The other sectors of the defences are not as well preserved but are traceable either as slight earthworks or by aerial photography except along part of the north side, and at the SE corner; destroyed by the construction of Blaen Cwm-bach Farm.

The monument is of national importance for its potential to enhance our knowledge of Roman military organisation. The monument forms an important element within the wider context of the Roman occupation of Wales and the structure itself may be expected to contain archaeological information concerning chronology and building techniques, together with a strong probability of environmental evidence.

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

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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