Atlas of Hillforts of Britain and Ireland

SC1122 Gilknockie Castle, Dumfriesshire (Gilnockie Bridge)

LiDAR 1m DTM Hillshade

LiDAR 1m DTM Hillshade

Satellite Imagery

Satellite Imagery

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HER:  Dumfries & Galloway MDG7830 (None)

NMR:  NY 37 NE 4 (67519)

SM:  11996

NGR:  NY 3862 7821

X:  338620  Y:  578210  (OSGB36)

Summary

This promontory work occupies the bluff overlooking the E end of Gilknockie Bridge and in the early 20th century was believed by some in the locality to be the site of a tower constructed by Johnny Armstrong of Gilknockie (Hyslop and Hyslop 1912, 350-1). While there is no evidence of a tower at this location, which has been heavily disturbed by quarrying and the roads and tracks approaching the bridge, a massive earthwork has been drawn across the neck of the promontory on the ENE, comprising an earthen rampart 7.5m in thickness by 1.8m in height with a broad external ditch. The triangular interior, which falls away precipitously on the NW and S, measures 61m from NE to SW by a maximum of 36m transversely (0.1ha) immediately to the rear of the rampart. Midway along the rampart there is an entrance with a corresponding causeway across the ditch. The character of the visible earthworks suggests that this is probably a medieval castle and it may have been the caput of the barony of 'Bryntallone' or 'Bretallach', which became redundant when its lands were granted to the priory of Canonbie (RCAHMS 1997, 196).

Status

Citizen Science:  

Reliability of Data:  Confirmed

Reliability of Interpretation:  Unconfirmed

Location

X:  -329877  Y:  7380234  (EPSG: 3857)

Longitude:  -2.9633363676860482  Latitude:  55.09452773087775  (EPSG:4326)

Country:  Scotland

Current County or Unitary Authority:  Dumfries & Galloway

Historic County:  Dumfriesshire

Current Parish/Community/Council/Townland:  Canonbie

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

If this is a fort rather than a castle, it is a promontory fort

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

In the absence of excavation, there are neither stratified artefacts nor radiocarbon dates to provide a chronology for the defences.

Reliability:  D - None

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:No related records

Investigation History

First depicted in 1857 on the 1st edition OS 25-inch map (Dumfriesshire 1862, sheet 53.12), it was visited in 1915 in the final stages of the preparation of the County Inventory for Dumfriesshire (RCAHMS 1920, 30, no.50). It was resurveyed by the OS at 1:2500 in 1970 and revisited in 1973. It was revisited by RCAHMS in 1980. It was Scheduled in 2009.

Investigations:
1st Identified Map Depiction (1857):   Named in Gothic type on the 1st edition OS 25-inch map (Dumfriesshire 1862, sheet 53.12)
Other (1915):   Description (RCAHMS 1920, 30, no.50)
Other (1970):   Resurveyed at 1:2500 by the OS
Other (1973):   Visited by the OS
Other (1980):   Description by RCAHMS
Other (2009):   Scheduled

Interior Features

Featureless and quarried

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

None

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:  
2:   None

Number of Possible Original Entrances:  
2:   None

Guard Chambers:  

Chevaux de Frise:  

Entrances:
1. Simple Gap (North east):   None

Enclosing Works

Single rampart and ditch across a promontory

Enclosed Area:
Area 1:   0.1ha.
Total:   0.1ha.

Total Footprint Area:  Noneha.

Ramparts

None

Multi-period Enclosure System:
✗   None

Ramparts Form a Continuous Circuit:
✗   None

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:  1

Annex:
✗   None

References

Hyslop and Hyslop, J and R (1912) Langholm as it was: a history of Langholm and Eskdale from the earliest times. Sunderland; Edinburgh; Glasgow

RCAHMS (1920) The Royal Commission on the Ancient and Historical Monuments of Scotland. Seventh Report with Inventory of Monuments and Constructions in the County of Dumfries. HMSO: Edinburgh

RCAHMS (1997) Eastern Dumfriesshire: an archaeological landscape. HMSO: Edinburgh



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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