HER:  The West of Scotland Archaeology Service 2572 (None)
NMR:  NR 39 SW 1 (37978)
SM:  5969
NGR:  NR 3486 9314
X:  134860  Y:  693140  (OSGB36)
This fort occupies the summit of a coastal headland. Oval on plan, it measures 30m from NE to SW by 20m transversely within a wall 3m in thickness; a long stretch of the outer face is visible around the E and S, in places standing 0.7m high in five courses. A medial wall-face within the thickness of the wall on the E possibly indicates multiperiod construction. The entrance is on the NE, opening onto a terrace on the cliff-edge, which has also been utilised for the entrance through an outer wall that extend from the cliff here round the E and S to the cliffs on the W; Of slighter construction it also retains several runs of outer facing-stones.
Citizen Science:  ✗
Reliability of Data:  Confirmed
Reliability of Interpretation:  Confirmed
X:  -696923  Y:  7569865  (EPSG: 3857)
Longitude:  -6.2605625468968595  Latitude:  56.057471184860795  (EPSG:4326)
Country:  Scotland
Current County or Unitary Authority:  Argyll & Bute
Historic County:  Argyll
Current Parish/Community/Council/Townland:  Colonsay And Oronsay
None
Extant   | ✓ |
Cropmark   | ✗ |
Likely Destroyed   | ✗ |
None
Woodland   | ✗ |
Commercial Forestry Plantation   | ✗ |
Parkland   | ✗ |
Pasture (Grazing)   | ✓ |
Arable   | ✗ |
Scrub/Bracken   | ✗ |
Bare Outcrop   | ✗ |
Heather/Moorland   | ✗ |
Heath   | ✗ |
Built-up   | ✗ |
Coastal Grassland   | ✓ |
Other   | ✗ |
None
Contour Fort   | ✓ |
Partial Contour Fort   | ✗ |
Promontory Fort   | ✗ |
Hillslope Fort   | ✗ |
Level Terrain Fort   | ✗ |
Marsh Fort   | ✗ |
Multiple Enclosure Fort   | ✗ |
Hilltop   | ✗ |
Coastal Promontory   | ✓ |
Inland Promontory   | ✗ |
Valley Bottom   | ✗ |
Knoll/Hillock/Outcrop   | ✗ |
Ridge   | ✗ |
Cliff/Plateau-edge/Scarp   | ✗ |
Hillslope   | ✗ |
Lowland   | ✗ |
Spur   | ✗ |
Dominant Topographic Feature:  None
North   | ✗ |
Northeast   | ✗ |
East   | ✗ |
Southeast   | ✗ |
South   | ✗ |
Southwest   | ✗ |
West   | ✗ |
Northwest   | ✗ |
Level   | ✓ |
Altitude:  35.0m
N/A
In the absence of excavation, there are neither stratified artefacts nor radiocarbon dates to provide a chronology for the defences.
Reliability:  D - None
Pre 1200BC   | ✗ |
1200BC - 800BC   | ✗ |
800BC - 400BC   | ✗ |
400BC - AD50   | ✗ |
AD50 - AD400   | ✗ |
AD400 - AD 800   | ✗ |
Post AD800   | ✗ |
Unknown   | ✓ |
Pre Hillfort:   | None |
Post Hillfort:   | None |
First depicted in 1878 on the 1st edition OS 6-inch map (Argyll and Bute 1881, sheet 155), it was visited in the late 19th century by Christian MacLagan, who drew up an undated sketch plan (RCAHMS DC52968, SAS467). Stuart and Margaret Piggott visited in 1944 (Piggott and Piggott 1946, 90), and the OS in 1974. In 1976 it was surveyed by RCAHMS for the County Inventory for Argyll (RCAHMS 1984, 90-1, no.150). It was Scheduled in 1994.
1st Identified Map Depiction (1878):   | Named in Gothic type on the 1st edition OS 6-inch map (Argyll and Bute 1881, sheet 155) |
Other (1944):   | Description by Stuart and Margaret Clifford (Piggott and Piggott 1946, 90) |
Other (1974):   | Surveyed at 1:10.000 by the OS |
Earthwork Survey (1976):   | Plan and description (RCAHMS 1984, 90-1, no.150; RCAHMS DC151-2) |
Other (1994):   | Scheduled |
Featureless
None
None   | ✓ |
Spring   | ✗ |
Stream   | ✗ |
Pool   | ✗ |
Flush   | ✗ |
Well   | ✗ |
Other   | ✗ |
None
No Known Features   | ✓ |
Round Stone Structures   | ✗ |
Rectangular Stone Structures   | ✗ |
Curvilinear Platforms   | ✗ |
Other Roundhouse Evidence   | ✗ |
Pits   | ✗ |
Quarry Hollows   | ✗ |
Other   | ✗ |
None
No Known Excavation   | ✓ |
Pits   | ✗ |
Postholes   | ✗ |
Roundhouses   | ✗ |
Rectangular Structures   | ✗ |
Roads/Tracks   | ✗ |
Quarry Hollows   | ✗ |
Other   | ✗ |
Nothing Found   | ✗ |
None
No Known Geophysics   | ✓ |
Pits   | ✗ |
Roundhouses   | ✗ |
Rectangular Structures   | ✗ |
Roads/Tracks   | ✗ |
Quarry Hollows   | ✗ |
Other   | ✗ |
Nothing Found   | ✗ |
None
No Known Finds   | ✓ |
Pottery   | ✗ |
Metal   | ✗ |
Metalworking   | ✗ |
Human Bones   | ✗ |
Animal Bones   | ✗ |
Lithics   | ✗ |
Environmental   | ✗ |
Other   | ✗ |
NO APPARENT FEATURES
APs Not Checked   | ✗ |
None   | ✓ |
Roundhouses   | ✗ |
Rectangular Structures   | ✗ |
Pits   | ✗ |
Postholes   | ✗ |
Roads/Tracks   | ✗ |
Other   | ✗ |
See main summary
1:   | None |
2:   | None |
Guard Chambers:  ✗
Chevaux de Frise:  ✗
1. Simple Gap (North east):   | None |
One continuous inner wall with an outlying wall on the E and S
Area 1:   | 0.05ha. |
Total:   | 0.05ha. |
Total Footprint Area:  0.12ha.
None
✓   | Medial wall face visible |
✓   | None |
NE Quadrant:   | 2 |
SE Quadrant:   | 2 |
SW Quadrant:   | 1 |
NW Quadrant:   | 1 |
Total:   | 2 |
Partial Univallate   | ✓ |
Univallate   | ✗ |
Partial Bivallate   | ✓ |
Bivallate   | ✗ |
Partial Multivallate   | ✗ |
Multivallate   | ✗ |
Unknown   | ✗ |
Partial Univallate   | ✗ |
Univallate   | ✗ |
Partial Bivallate   | ✗ |
Bivallate   | ✗ |
Partial Multivallate   | ✗ |
Multivallate   | ✗ |
None
None   | ✗ |
Earthen Bank   | ✗ |
Stone Wall   | ✓ |
Rubble   | ✗ |
Wall-walk   | ✗ |
Evidence of Timber   | ✗ |
Vitrification   | ✗ |
Other Burning   | ✗ |
Palisade   | ✗ |
Counter Scarp Bank   | ✗ |
Berm   | ✗ |
Unfinished   | ✗ |
Other   | ✗ |
None
None   | ✗ |
Earthen Bank   | ✗ |
Stone Wall   | ✗ |
Murus Duplex   | ✗ |
Timber-framed   | ✗ |
Timber-laced   | ✗ |
Vitrification   | ✗ |
Other Burning   | ✗ |
Palisade   | ✗ |
Counter Scarp Bank   | ✗ |
Berm   | ✗ |
Unfinished   | ✗ |
No Known Excavation   | ✓ |
Other   | ✗ |
✗   | None |
✗   | None |
Number of Ditches:  None
✗   | None |
Piggott and Piggott, S and C M (1946) 'Field work on Colonsay and Islay, 1944-45'. Proc Soc Antiq Scot 80 (1945-6), 83-103
RCAHMS (1984) The Royal Commission on the Ancient and Historical Monuments of Scotland. Argyll: an inventory of the monuments volume 5: Islay, Jura, Colonsay and Oronsay. HMSO: Edinburgh
Atlas of Hillforts:
Wikidata:
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
Document Version 1.1