Atlas of Hillforts of Britain and Ireland

SC2747 Loch Thurnaig, Ross-shire (Dunan Mor)

Satellite Imagery

Satellite Imagery

HER:  Highland HER MHG7570 (None)

NMR:  NG 88 SE 4 (11985)

SM:  None

NGR:  NG 8627 8333

X:  186270  Y:  883330  (OSGB36)

Summary

This small fortification is situated on the S shore of Loch Thurnaig, where a hammerhead promontory fringed with low cliffs is linked to the mainland by little more than a broad grass-grown storm beach. The defences comprise two elements: an outer wall barring access to the NW end of the hammerhead, cutting across its spine from E to W; and an inner D-shaped enclosure backing onto the lip of the low cliffs on the NE. The outer has been reduced largely to a stony scarp with a few large outer facing-stones along its line and cuts off an area measuring about 43m from NW to SE by 23m transversely (0.09ha); a gap in the wall on the SE is possibly the entrance. The inner enclosure is probably roughly oval, though there is little evidence of the wall on the NE, and measures internally about 21m from N to S by 17m transversely (0.03ha); where best preserved the wall forms a stony bank 2.6m in thickness and 0.5m in height. The relationship between the two elements is not known.

Status

Citizen Science:  

Reliability of Data:  Confirmed

Reliability of Interpretation:  Confirmed

Location

X:  -623091  Y:  7923029  (EPSG: 3857)

Longitude:  -5.597317368771586  Latitude:  57.788550715022595  (EPSG:4326)

Country:  Scotland

Current County or Unitary Authority:  Highland

Historic County:  Ross-shire

Current Parish/Community/Council/Townland:  Gairloch

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

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:   None

Evidence:No related records

Investigation History

None

Investigations:
1st Identified Written Reference (1886):   Noted (Dixon 1886, 98)
1st Identified Map Depiction (1965):   Visited by the OS
Other (1994):   Description from RCAHMS fieldwork
Other (1998):   Visited by Jill Harden for the National Trust for Scotland

Interior Features

Featureless apart from the dun-like structure

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:  
1:   Incomplete circuits

Number of Possible Original Entrances:  
2:   None

Guard Chambers:  

Chevaux de Frise:  

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

Enclosing Works

Single wall cutting off a promontory and an inner enclosure

Enclosed Area:
Area 1:   0.09ha.
Total:   0.09ha.

Total Footprint Area:  Noneha.

Ramparts

None

Multi-period Enclosure System:
✗   This measurement is for the promontory enclosure within which the dun-like structure lies

Ramparts Form a Continuous Circuit:
✗   This analysis discounts the wall of the dun-like structure

Number of Ramparts:  
NE Quadrant:   0
SE Quadrant:   1
SW Quadrant:   1
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

Reduced to scarp

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

Dixon, J H (1886) Gairloch in north west Ross-shire: its records, traditions inhabitants and natural history with a guide to Gairloch and Loch Maree. 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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