Atlas of Hillforts of Britain and Ireland

SC1418 Sheep Hill, Dunbartonshire

Satellite Imagery

Satellite Imagery

HER:  The West of Scotland Archaeology Service 7938 (None)

NMR:  NS 47 SW 6 (43388)

SM:  2908

NGR:  NS 4348 7440

X:  243480  Y:  674400  (OSGB36)

Summary

This fort is situated on the summit of Sheep Hill, a steep-sided spur above the N bank of the River Clyde that falls away steeply on all sides except the NE. The defences comprise three elements: a small oval enclosure occupying the rocky boss that forms the summit; an irregular enclosure taking in additional ground on the S and W; and an outer rampart enclosing a triangular terrace on the S. Excavations by Euan MacKie 1966-8 demonstrated that the enclosure on the summit, which measures no more than 40m from E to W by 27m transversely (0.08ha) internally, was the primary fortification, with a heavily vitrified timber-laced rampart. The rampart of the larger enclosure below it incorporated numerous pieces of vitrified stone and was evidently a seconday construction, enclosing an irregular area measuring about 82m from E to W by 45m transversely (0.38ha), to which the triangular annexe on the S is presumably appended. In its second phase, the fort had entrances on the N and S respectively, the former utilising a steep gully through the rock faces, and the latter across a gentler slope leading up from the annexe on the S, which has an entrance in its E side. Finds from deposits that had built up on a layer of rubble against the second phase rampart on the SE included a blue glass ring and fragments of finished and unfinished shale bracelets, as well as pieces of raw material (MacKie 1976, 212). At two points this rampart was found to also overlie earlier occupation deposits, a midden on the SE side of the fort yielding numerous sherds of pottery and eight fragments of moulds, including one for casting a Late Bronze Age axe (MacKie 1976, 212-13). Despite the vitrification of one of the sherds in the top of this midden, there is no reason to attribute a Late Bronze Age date to the small timber-laced fort on the summit.

Status

Citizen Science:  

Reliability of Data:  Confirmed

Reliability of Interpretation:  Confirmed

Location

X:  -501762  Y:  7545913  (EPSG: 3857)

Longitude:  -4.507403710926039  Latitude:  55.937142357956915  (EPSG:4326)

Country:  Scotland

Current County or Unitary Authority:  West Dunbartonshire

Historic County:  Dunbartonshire

Current Parish/Community/Council/Townland:  Old Kilpatrick

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:  150.0m

Boundary

N/A


Dating Evidence

No clear dating evidence for the sequence of fortifications

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:   LBA moulds from under the second phase wall and a glass ring-bead from above.

Investigation History

The first recognition of the fort on Sheep Hill comes with an excavation mounted by the Helensburgh Natural History and Antiquarian Society in 1893 (Bruce 1893, 319), and it appears shortly after on the 2nd edition OS 25-inch map (Dunbartonshire 1898, sheet 22.7). It was surveyed in 1955 by RCAHMS during the Survey of Marginal Lands, and resurveyed at 1:2500 in 1963. It was excavated by Euan MacKie 1966-9 (1976) and Scheduled in 1970. RCAHMS revisited in 1977

Investigations:
Excavation (1893):   No record (Bruce 1893, 319)
1st Identified Map Depiction (1896):   Annotated Fort on the 2nd edition OS 25-inch map (Dunbartonshire 1898, sheet 22.7)
Earthwork Survey (1955):   Plan and description during RCAHMS Survey of Marginal Lands (RCAHMS DBD 5/1-3; DP148470, DP148471 & SC1320522)
Other (1963):   Resurveyed at 1:2500 by the OS
Excavation (1966):   Euan MacKie (1966; 1976)
Excavation (1967):   Euan MacKie (1967; 1976)
Excavation (1968):   Euan MacKie (1968; 1976)
Excavation (1969):   Euan MacKie (1969; 1976)
Other (1970):   Scheduled
Other (1977):   Description by RCAHMS

Interior Features

Featureless

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

Midden deposits

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 from deposits that had built up on a layer of rubble against the second phase rampart included a blue glass ring and fragments of finished and unfinished shale bracelets, as well as pieces of raw material, while in the midden below the rampart there were numerous sherds of pottery a eight fragments from bronze moulds, including the blade of an axe

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:   Circuit is fragmentary

Number of Possible Original Entrances:  
2:   None

Guard Chambers:  

Chevaux de Frise:  

Entrances:
1. In-turned (North):   According to MacKie, to either side of the gully
2. Simple Gap (South):   None

Enclosing Works

Two successive ramparts, the inner little more than a dun on the summit

Enclosed Area:
Area 1:   0.38ha.
Total:   0.38ha.

Total Footprint Area:  0.6ha.

Ramparts

None

Multi-period Enclosure System:
✓   Second phase given as the fort measurements

Ramparts Form a Continuous Circuit:
✓   The second phase fort is detailed here

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

Vitrifaction belongs to the earlier and smaller fortification on the summit

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:
✓   There is a small triangular annexe (0.13ha) on the south, through which access to the fort from this side passes.

References

Bruce, J (1893) The history of the parish of West or Old Kilpatrick and of the church and certain lands in the parish of East or New Kilpatrick. Glasgow

Feachem, R W (1963) Guide to Prehistoric Scotland. Batsford: London (p 118-19)

MacKie, E 1966 'Sheep hill vitrified fort'. Disc Exc Scot 1966, 24-5

MacKie, E 1967 'Sheep hill vitrified fort'. Disc Exc Scot 1967, 25

MacKie, E 1968 'Sheep hill vitrified fort'. Disc Exc Scot 1968, 20

MacKie, E 1969 'Sheep hill vitrified fort'. Disc Exc Scot 1969, 22

MacKie, E W (1976) 'The vitrified forts of Scotland', in Harding, D W (ed) Hillforts: later prehistoric earthworks in Britain and Ireland. Academic Press: London, New York & San Francisco, 205-35



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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