Atlas of Hillforts of Britain and Ireland

SC2546 Seil, Dun Aorain, Argyll (Ellanbeich)

Satellite Imagery

Satellite Imagery

HER:  The West of Scotland Archaeology Service 851 (None)

NMR:  NM 71 NW 1 (22613)

SM:  4178

NGR:  NM 7475 1717

X:  174750  Y:  717170  (OSGB36)

Summary

Dun Aorain occupies a precipitous coastal promontory, access to which is blocked by a severely denuded wall about 2.4m in thickness, with evidence of an entrance some 3.2m wide midway along its length. Conventionally interpreted as an outwork to the sub-oval dun on the outcrops forming summit of the promontory on its W margin, the relationship between the two elements is unknown, and the dun may well have been inserted into an earlier promontory fortification. Defined by cliffs on all sides and the wall on the NE, Its interior is roughly square and measures some 40m across (0.15ha). The dun is sub-oval, measuring 17m from NNE to SSW by 12m transversely within a wall of variable thickness, and the entrance is on the E. Excavation in 1970 uncovered steps leading down into an intramural chamber and showed that the dun wall thickened at this point from 4.3m to 5.3m; finds included a few small sherds of coarse pottery, a slate disc and an anvil stone (RCAHMS 1975, 83-4, no.166). RCAHMS suggested that the thickened wall in this sector may have been akin to a blockhouse. The only other feature visible on the promontory is a small, stone-founded, rectangular building.

Status

Citizen Science:  ✗

Reliability of Data:  Confirmed

Reliability of Interpretation:  Unconfirmed

Location

X:  -628036  Y:  7617041  (EPSG: 3857)

Longitude:  -5.6417442150027055  Latitude:  56.29337492207154  (EPSG:4326)

Country:  Scotland

Current County or Unitary Authority:  Argyll & Bute

Historic County:  Argyll

Current Parish/Community/Council/Townland:  Kilbrandon And Kilchattan

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:  10.0m

Boundary

N/A


Dating Evidence

There are no radiocarbon dates to provide a chronology for the defences, and the artefacts recovered are not chronologically distinct.

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:   probably overlain by the rectangular building

Evidence:No related records

Investigation History

None

Investigations:
1st Identified Map Depiction (1871):   Annotated Fort on the 1st edition OS 25-inch map (Argyll and Bute 1875, sheet 121.7)
Earthwork Survey (1888):   Sketch-plan and description by David Christison (1889, 399-400, fig 26)
Earthwork Survey (1966):   Plan (RCAHMS 1975, 83-4, no.166, fig 59; RCAHMS AGD 412/1-2)
Excavation (1970):   of mural chamber (RCAHMS 1975, 83-4, no.166)
Other (1971):   Survyed at 1:2500 by the OS
Other (1979):   Scheduled

Interior Features

Featureless apart from the dun and a small rectangular building

Water Source

None

Source:
None   ✓
Spring   ✗
Stream   ✗
Pool   ✗
Flush   ✗
Well   ✗
Other   ✗

Surface

The dun is possibly an insertion

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

Excavation

Empties mural chamber

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

A few small sherds of coarse pottery, a slate disc and an anvil stone

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

Number of Possible Original Entrances:  
2:   Dun is discounted

Guard Chambers:  ✗

Chevaux de Frise:  ✗

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

Enclosing Works

Single wall cutting off a promontory

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

Total Footprint Area:  Noneha.

Ramparts

None

Multi-period Enclosure System:
✗   None

Ramparts Form a Continuous Circuit:
✗   Dun wall is discounted from this analysis

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:
✗   None

References

Christison, D (1889) The duns and forts of Lorne, Nether Lochaber, and the neighbourhood'. Proc Soc Antiq Scot 23 (1888-9), 368-432

RCAHMS (1970) 'Dun Aorain, Kilbrandon and Kilchattan'. Disc Exc Scot 1970, 64

RCAHMS (1975) The Royal Commission on the Ancient and Historical Monuments of Scotland. Argyll: an inventory of the ancient monuments: volume 2: Lorn. 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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