Atlas of Hillforts of Britain and Ireland

SC1297 Dundonald Castle, Ayrshire

LiDAR 1m DTM Hillshade

LiDAR 1m DTM Hillshade

Satellite Imagery

Satellite Imagery

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HER:  The West of Scotland Archaeology Service 6541 (None)

NMR:  NS 33 SE 11 (41961)

SM:  90112

NGR:  NS 3636 3451

X:  236360  Y:  634510  (OSGB36)

Summary

Excavation of Dundonald Castle 1986-93 has not only revealed evidence of Iron Age and Early medieval occupation, but also a length of a vitrified rampart some 4m in thickness lying immediately E of the later barmkin wall, while at the NE corner of the barmkin there was also evidence of a timber palisade; excavation of metalled road surfaces and a groove worn in the bedrock indicated that there was an entrance just S of the length of rampart that was uncovered. Unfortunately the full extent and dates of these earlier defences are unknown, though the presence of E-ware, a glass bead and evidence of metalworking in the assemblage of objects apparently associated with occupation of the interior when the rampart was burnt, suggests that this was a high status site and was probably fortified in at least the the 7th century AD. The assemblage of shale objects, however, is as likely to be Iron Age in date, and the construction of successive round-houses, followed by rectangular buildings, the latter apparently destroyed at the same time as the rampart, attests several periods of occupation when fortifications may have been erected during the 1st millennium BC and the 1st millennium AD. The excavators speculated that occupation on the hilltop had evolved from an Iron Age hillfort into an early medieval dun with a timber-laced wall enclosing about 0.12ha, and the identification of a patch of apparently in situ vitrifaction somewhere to the W of the stone castle led them to propose that the dun had formed a citadel within a larger enclosure, whose circuit was also roughly dictated by the topography of the hilltop. The positions of the two circuits shown on their phased plan of the hilltop (Ewart et al 2004, 28, fig 8) enclose areas of 0.15ha and 0.28ha respectively, but no great reliance can be put upon this interpretation. There are no radiocarbon dates for any of the early features and the use of thermoluminescence on vitrifaction has now been shown to be unreliable, albeit that in this instance it provided a date centred on AD 1000.

Status

Citizen Science:  

Reliability of Data:  Confirmed

Reliability of Interpretation:  Confirmed

Location

X:  -511774  Y:  7474610  (EPSG: 3857)

Longitude:  -4.597342367927214  Latitude:  55.576722581840606  (EPSG:4326)

Country:  Scotland

Current County or Unitary Authority:  South Ayrshire

Historic County:  Ayrshire

Current Parish/Community/Council/Townland:  Dundonald

Monument Condition

None

Condition:
Extant  
Cropmark  
Likely Destroyed  

Land Use

None

Current Use:
Woodland  
Commercial Forestry Plantation  
Parkland  
Pasture (Grazing)  
Arable  
Scrub/Bracken  
Bare Outcrop  
Heather/Moorland  
Heath  
Built-up  
Coastal Grassland  
Other  

Landscape

Hillfort Type

None

Type:
Contour Fort  
Partial Contour Fort  
Promontory Fort  
Hillslope Fort  
Level Terrain Fort  
Marsh Fort  
Multiple Enclosure Fort  

Topographic Position

Position:
Hilltop  
Coastal Promontory  
Inland Promontory  
Valley Bottom  
Knoll/Hillock/Outcrop  
Ridge  
Cliff/Plateau-edge/Scarp  
Hillslope  
Lowland  
Spur  

Dominant Topographic Feature:  None

Aspect:
North  
Northeast  
East  
Southeast  
South  
Southwest  
West  
Northwest  
Level  

Altitude:  50.0m

Boundary

N/A


Dating Evidence

There is no C14 chronology from the pre-castle phases and the use of thermoluminescence on the rampart is technically flawed. Its use on other contexts is of uncertain value, with wide standards of error. E ware in contexts also associated with crucibles indicate a phase of occupation in at least the 7th century AD.

Reliability:  C - Low

Principal Activity:
Pre 1200BC  
1200BC - 800BC  
800BC - 400BC  
400BC - AD50  
AD50 - AD400  
AD400 - AD 800  
Post AD800  
Unknown  

Other Activity:
Pre Hillfort:   None
Post Hillfort:   None

Evidence:
Artefactual:   None
Other:   Thermoluminescence

Investigation History

The castle is depicted on early maps, but the presence of an early medieval fort on the hilltop is first postulated by Lloyd Laing (1975, 37). The castle was Scheduled in 1920. Excavations were carried out by Gordon Ewart on behalf of Historic Scotland 1986-93.

Investigations:
Other (1920):   Scheduled
Excavation (1986):   Beginning of excavation and the discovery of the vitrified rampart (Ewart and Pringle 2004)

Interior Features

Complex stratified sequence of round-houses and rectangular buildings

Water Source

None

Source:
None  
Spring  
Stream  
Pool  
Flush  
Well  
Other  

Surface

None

Interior Features (Surface):
No Known Features  
Round Stone Structures  
Rectangular Stone Structures  
Curvilinear Platforms  
Other Roundhouse Evidence  
Pits  
Quarry Hollows  
Other  

Excavation

None

Interior Features (Excavation):
No Known Excavation  
Pits  
Postholes  
Roundhouses  
Rectangular Structures  
Roads/Tracks  
Quarry Hollows  
Other  
Nothing Found  

Geophysics

None

Interior Features (Geophysics):
No Known Geophysics  
Pits  
Roundhouses  
Rectangular Structures  
Roads/Tracks  
Quarry Hollows  
Other  
Nothing Found  

Finds

Finds include: coarse prehistoric pottery; three sherds of E ware; gold wire; bronze fibula; iron spearhead; iron knife; nail-headed bone pin; several shale bangle; shale ring; shale pendant; shale spacer bead; shale gaming piece; and several other pierced discs of shale and slate.

Interior (Finds):
No Known Finds  
Pottery  
Metal  
Metalworking  
Human Bones  
Animal Bones  
Lithics  
Environmental  
Other  

Aerial

NO APPARENT FEATURES

Interior Features (Aerial):
APs Not Checked  
None  
Roundhouses  
Rectangular Structures  
Pits  
Postholes  
Roads/Tracks  
Other  

Entrances

See main summary

Total Number of Breaks Through Ramparts:  
1:   None of the circuit is visible

Number of Possible Original Entrances:  
2:   None

Guard Chambers:  

Chevaux de Frise:  

Entrances:
1. Uncertain (South east):   Form of the entrance is unknown

Enclosing Works

Single vitified rampart with evidence of beam slots

Enclosed Area:
Area 1:   0.15ha.
Total:   0.15ha.

Total Footprint Area:  0.28ha.

Ramparts

None

Multi-period Enclosure System:
✗   None

Ramparts Form a Continuous Circuit:
✗   Unknown circuit

Number of Ramparts:  
NE Quadrant:   1
SE Quadrant:   0
SW Quadrant:   0
NW Quadrant:   0
Total:   1

Morphology

Current Morphology:
Partial Univallate  
Univallate  
Partial Bivallate  
Bivallate  
Partial Multivallate  
Multivallate  
Unknown  

Detailed Morphology:
Partial Univallate  
Univallate  
Partial Bivallate  
Bivallate  
Partial Multivallate  
Multivallate  

Surface Evidence

None

Enclosing Works (Surface):
None  
Earthen Bank  
Stone Wall  
Rubble  
Wall-walk  
Evidence of Timber  
Vitrification  
Other Burning  
Palisade  
Counter Scarp Bank  
Berm  
Unfinished  
Other  

Excavated Evidence

None

Enclosing Works (Excavation):
None  
Earthen Bank  
Stone Wall  
Murus Duplex  
Timber-framed  
Timber-laced  
Vitrification  
Other Burning  
Palisade  
Counter Scarp Bank  
Berm  
Unfinished  
No Known Excavation  
Other  

Other

Gang Working:
✗   None

Ditches:
✗   None

Number of Ditches:  None

Annex:
✓   The putative outer defence might be construed as an annexe enclosing an overall area of about 0.28ha.

References

Ewart, G, and Pringle, D 2004 'Dundonald Castle Excavations 1986-93'. Scottish Archaeol J 26 (2004), 1-166

Laing, L R (1975) The archaeology of late Celtic Britain and Ireland c. 400-1200 AD. London



Terms of Use

This work is licensed under CC BY-SA 4.0 and should be cited as:

Lock, Gary and Ralston, Ian. 2024. Atlas of Hillforts of Britain and Ireland. Available at: https://hillforts.arch.ox.ac.uk


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