The Glamorgan-Gwent Archaeological
Historic Environment Record
following information has been provided under the terms and conditions
of access as detailed on GGAT’s website www.ggat.org.uk.
Copyright is reserved on all data supplied by the GGAT HER Charitable Trust.
All output resulting from the use of the data must acknowledge the source
from information held by the GGAT HER Charitable Trust copyright.
data below is intended to be used for information and research only and
is not for use as part of a commercial project. If you wish to use
information derived from material held by the GGAT HER Charitable Trust
for publication in printed or multimedia form or to compile resources for
commercial use, prior permission must be obtained in writing. For further
information or to arrange a visit to the Trust please send an
The following information is from the
on-line database Archwilio
Roman Marching Camp South East of Coelbren FortPrimary Reference Number (PRN) : 00527w
Trust : Glamorgan Gwent
Community : Onllwyn
NGR : SN86201025
Site Type (preferred type first) : Roman Marching camp
Legal Protection : scheduled ancient monument
Roman Marching Camp (about 14ha) situated at c.230m above O.D. and has an axis lying slightly west of north and the north and south sides are almost parallel. The defences (bank & ditch), damaged, are best preserved on the southern half of the west side.
Roman Marching Camp situated about 180m on the south-east of Coelbren Fort (00526w) and lying on part of a low and broad ridge rising to a height of about 230m above O.D. The crest of the ridge runs almost due West from the south-east corner and most of the interior falls, which lies on the other side of the Camnant. The camp has an axis lying slightly west of north and the north and south sides are almost parallel but the east and west sides are not quite so. The camp is 438m long, tapering from 332m to 305m, with an area of about 14ha. The defences are best preserved on the southern half of the west side and they consist of a bank and ditch about 4.6m wide by 0.3m high overall.
For most of the perimeter except in the south-west quarter, defences have been damaged by the construction of field banks. The rampart can be detected fairly well throughout, and except in the south-west the rounded corners are still visible, though all details of the entrances have been destroyed. The interior is mostly peaty and very wet in the north half. About 60m of the adjacent sides of the south-west corner and the corner itself disappear into the marsh which drains into the Camnant (RCAHM 1976).
Yates, A. , 2001 , Coelbren Roman Fort, Duffryn Cellwen, Neath Port Talbot: Archaeological Survey
RCAHM, 1976, An Inventory of the Ancient Monuments in Glamorgan, I, ii, num. 738
CADW Scheduled Ancient Monument, 2006, Visit Description (1986, last amended in 2006)
E004470 : Coelbren Roman Fort, Duffryn Cellwen, Neath Port Talbot: SUR (year : 2001)
Related PRNs : 00526w
February 9, 2016, 1:43 pm
- HTML file produced from GGAT HER Charitable Trust Ltd. Heathfield House,
Heathfield, Swansea SA1 Tel. 01792 655208; Fax 01792 474469 website: www.ggat.org.uk
email: firstname.lastname@example.org Registered Charity no. 505609
supplied by in partnership with Local Authorities, Cadw and the partners
of ENDEX © GGAT HER Charitable Trust, 2016 (and in part © Crown,