Atlas of Hillforts of Britain and Ireland

SC2535 Eilean Nan Gobhar, Sound of Arisaig, Inverness-shire (Eilean Nan Gobhar 1)

Satellite Imagery

Satellite Imagery

HER:  Highland HER MHG4026 (None)

NMR:  NM 67 NE 1 (22509)

SM:  None

NGR:  NM 6938 7938

X:  169380  Y:  779380  (OSGB36)

Summary

Situated on the summit of this small island in the mouth of Loch Ailort, this small fortification is roughly trapezoidal on plan, measuring internally about 40m in length and ranging from 23m in length at the ESE end to 16m at the WNW end (0.08ha). The defences comprise a single wall with an extensively vitrified core still standing up to 2.5m high; it may have measured between 4m and 5m in thickness, though the only evidence of the wall-faces is a run of some 22m of the outer on the N. The position of the entrance is unknown, but the heads of gullies that may have provided access on the S and N have been blocked by traces of what may be an outer wall reduced to bands of rubble with occasional outer facing-stones, and the northern includes at least one piece of vitrifaction. Keith Blood, the OS surveyor who visited in 1970 and noted these remains, considered the possibility that they belonged to an earlier and larger enclosure, but on balance interpreted them as outworks; he also observed other fragments of rough walling blocking the gullies further down the slope and filling all the gaps in the outcrops around the foot of the hillock; the relationship of these remains to the summit enclosure is unknown. Within the interior there are three circular stone-founded structures, each about 6m in internal diameter, two of which are set against the inner line of the wall, though the stratigraphic relationship is uncertain.

Status

Citizen Science:  

Reliability of Data:  Confirmed

Reliability of Interpretation:  Confirmed

Location

X:  -643835  Y:  7729214  (EPSG: 3857)

Longitude:  -5.783669830071685  Latitude:  56.84849084518991  (EPSG:4326)

Country:  Scotland

Current County or Unitary Authority:  Highland

Historic County:  Inverness-shire

Current Parish/Community/Council/Townland:  Arisaig And Moidart

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:  40.0m

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:   Circular structures may be later huts

Evidence:No related records

Investigation History

Although included by Richard Feachem in his Guide to Prehistoric Scotland (1963, 127), it is not clear whether his brief description is based on a field visit. Samples were included in Helen Nisbets analyses (1974; 1975, 13). Highland HER hold a photographic record.

Investigations:
1st Identified Map Depiction (1873):   Annotated Vitrified Fort on the 1st edition OS 6-inch map (Invernesshire, Mainland, 1876, sheet 135)
Earthwork Survey (1880):   Sketch-plan and description by Edward Hamilton (1880, 239-40, pl 2)
Other (1970):   Description by OS

Interior Features

Three circular structures

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:  
0:   None

Number of Possible Original Entrances:  
2:   Not known

Guard Chambers:  

Chevaux de Frise:  

Entrances:No related records

Enclosing Works

Single heavily vitrified wall, with possible outer works blocking access routes

Enclosed Area:
Area 1:   0.08ha.
Total:   0.08ha.

Total Footprint Area:  Noneha.

Ramparts

None

Multi-period Enclosure System:
✗   None

Ramparts Form a Continuous Circuit:
✓   None

Number of Ramparts:  
NE Quadrant:   2
SE Quadrant:   1
SW Quadrant:   2
NW Quadrant:   1
Total:   2

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

Feachem, R (1963) A guide to prehistoric Scotland. Batsford: London

Hamilton, E (1880) Archaeol J 37 (1880), 227-43

Nisbet, H C (1974) 'A geological approach to vitrified forts, part I: the archaeological and scientific background'. Sci & Archaeol 12 (1974), 3-12

Nisbet, H C (1975) 'A geological approach to vitrified forts, part II: bedrock and building stone'. Sci & Archaeol 15 (1975), 3-16



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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