The Glamorgan-Gwent Archaeological
Historic Environment Record
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Dunraven Promontory FortPrimary Reference Number (PRN) : 00329m
Trust : Glamorgan Gwent
Site Type : Promontory fort
Period : Iron Age
Community : St Bride's Major
NGR : SS88677279
Legal Protection : scheduled ancient monument
An Iron Age hillfort situated on a headland projecting west into the sea, partly destroyed by the building of a house within it.
The fort occupies a conspicuous headland at 60m OD. S of this summit hard strata have resisted erosion and form the nose Trwyn y Witch, but north of it the W side of the promontory is being worn away, and presents a vertical cliff. The area enclosed is 6.5ha, but may have been at least half as much again, originally.
The main defences follow the SW side of the cwm, the SE side damaged by the later Dunraven Castle, but were still preserved measure 43m wide and 12m high and curve round to the present cliff. The gateway was W of the eroded end of these ramparts. 25m NW of these defences the ridge is crossed by another bank, but with no accompanying ditch. At the E end this curves round sharply to the NW and becomes a single bank and ditch following the edge of the cwm and continuing to the cliff edge. Owing to erosion, the relation of this rampart to the main enclosure is not clear, but it probably protected some form of annexe outside the entrance.
Within the enclosure there area three groups of shallow hollows, or hut platforms, 5-6m diameter, the majority are probably the sites of huts contemporary with the fort, although some may be small quarries. The main enclosure also contains two groups of pillow mounds. In 1813 Iolo Morgannwg sectioned a rampart describing the upper part as formed by mass of lime and sand concrete.
An aerial photograph suggests the presence of a filled ditch.
Geophysical survey carry out as part of GGAT 70 (Coastal Hillforts Project) failed to identify any intelligible features in the interior.
Barker and Mercer 1999d; Sell 2000.
Wiggins 2005 (GGAT78 Prehistoric Defended Enclosures database)
An Iron Age hillfort situated on a headland projecting west into the sea. The whole area is under grass. Along the NE side there is a low bank with a ditch inside it. Either the earliest house and/or a replacement early 19th century house built within it destroyed the eastern end of the outer ramparts.
Wiggins, H and Evans, E , 2005 , Prehistoric defended enclosures in Glamorgan with recommendations for fieldwork
02/MM Record Card/OS/1968/SS 87 SE 3
01/PM List/RCHM/1976/Glam Invent/No.666
05/PM Desc Text///1978/Archaeology in Wales/;
08/MM Photo///GGAT/Lewis W/1979-80
04/PM Desc Text//Savory H.N/1949/Bull Board Celtic Stud V.13 Pt.3;
07/MM Record Card/OS//1976/SS 87 SE 3/;
06/MM Air Photo/Westair///1979/Bu 1765;
03/PM Desc Text///1949/Bull Board Celtic Stud/;
010/Desc Text/Cadw/ Full Management Report/2007/ Copy in further information file
E000727 : DUNRAVEN, UNSPECIFIED EXCAVATION, 1813 (year : 1813)
E001455 : Prehistoric defended enclosures in Glamorgan (year : 2005)
Related PRNs : 330m, 4365m
July 31, 2014, 11:27 am
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