HER:  The West of Scotland Archaeology Service 2687 (None)
NMR:  NR 45 SW 5 (38094)
SM:  None
NGR:  NR 4312 5107
X:  143120  Y:  651070  (OSGB36)
This fort encloses the summit of a narrow rocky ridge rising out of open moorland. Defended by a single wall up to 2.8m thick, the interior measures about 76m from NE to SW by a maximum of 16m transversely (0.1ha), not only taking in the rocky spine of the ridge but also a lower terrace on its NW flank. The wall itself is best preserved approaching the entrance at the SW end, where the outer face still stands up to 1.6m in height, though elsewhere it has been reduced to an intermittent band of rubble with several runs of outer face. The masonry on the SE side of the entrance has largely collapsed, but the passageway measures about 1.3m wide, and at the inner end of its NW side, which is founded to take advantage of a boss of outcrop, the face is 1.5m high; four probable lintels up to 2.1m in length lie in the rubble, suggesting that the passageway was at least partly roofed. The only structure visible within the interior is a late animal pen built immediately in the rear of the wall on the W.
Citizen Science:  ✗
Reliability of Data:  Confirmed
Reliability of Interpretation:  Confirmed
X:  -677758  Y:  7495951  (EPSG: 3857)
Longitude:  -6.088400328372258  Latitude:  55.684945385803  (EPSG:4326)
Country:  Scotland
Current County or Unitary Authority:  Argyll & Bute
Historic County:  Argyll
Current Parish/Community/Council/Townland:  Kildalton And Oa
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:  130.0m
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:   | Later animal pen built into the rear of the wall on the W |
First reported by Frank Newall in 1964 (Newall 1964), it was surveyed in 1977 by RCAHMS during the preparation of the County Inventory for Argyll (RCAHMS 1984, 98, no.162), and visited by the OS in 1979. It was photographed from the air by RCAHMS in 1979 and 2006.
| 1st Identified Written Reference (1964):   | Discovery and description by Frank Newall (Newall 1964) |
| Earthwork Survey (1977):   | Plan and description (RCAHMS 1984, 98, no.162; RCAHMS DC173-4) |
| 1st Identified Map Depiction (1979):   | Surveyed at 1:10.000 by the OS |
Featureless except for a later animal pen
None
| None   | ✓ |
| Spring   | ✗ |
| Stream   | ✗ |
| Pool   | ✗ |
| Flush   | ✗ |
| Well   | ✗ |
| Other   | ✗ |
Later stone walled animal pen
| 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   | ✗ |
Later stone-walled animal pen
| APs Not Checked   | ✗ |
| None   | ✗ |
| Roundhouses   | ✗ |
| Rectangular Structures   | ✗ |
| Pits   | ✗ |
| Postholes   | ✗ |
| Roads/Tracks   | ✗ |
| Other   | ✓ |
See main summary
| 1:   | Numerous gaps in the line of the wall |
| 2:   | None |
Guard Chambers:  ✗
Chevaux de Frise:  ✗
| 1. Passage-way/Corridor (South west):   | None |
Single wall, probably originally continuous
| Area 1:   | 0.1ha. |
| Total:   | 0.1ha. |
Total Footprint Area:  Noneha.
None
| ✗   | None |
| ✓   | None |
| NE Quadrant:   | 1 |
| SE Quadrant:   | 1 |
| SW Quadrant:   | 1 |
| NW Quadrant:   | 1 |
| Total:   | 1 |
| 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 |
Newall, F (1964) 'Hill forts', Discovery Excav Scot 1964, 12
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