Atlas of Hillforts of Britain and Ireland

SC2749 Skye, Dun Colbost, Inverness-shire

Satellite Imagery

Satellite Imagery

HER:  Highland HER MHG4840 (None)

NMR:  NG 24 NW 5 (10833)

SM:  None

NGR:  NG 2055 4947

X:  120550  Y:  849470  (OSGB36)

Summary

The broch known as Dun Colbost, which occupies a flat-topped hillock edged with low cliffs, is enclosed by a substantial outer wall about 2m in thickness, forming a roughly oval enclosure measuring internally about 32m from NNE to SSW by 26m transversely (0.07ha). By and large the wall follows the cliff-edge, but on the W it cuts back across the crest of the hillock, perhaps suggesting in this case that the enclosure is firmly focused on the broch, rather than in this instance it is an outwork rather than a free-standing enclosure. The entrance is on the NW, while the doorway into the broch is on the WSW. Excavations which examined the area between the broch and the outer wall are as yet unpublished.

Status

Citizen Science:  

Reliability of Data:  Confirmed

Reliability of Interpretation:  Unconfirmed

Location

X:  -741407  Y:  7852510  (EPSG: 3857)

Longitude:  -6.660172583584956  Latitude:  57.4492923108973  (EPSG:4326)

Country:  Scotland

Current County or Unitary Authority:  Highland

Historic County:  Inverness-shire

Current Parish/Community/Council/Townland:  Duirinish

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:  100.0m

Boundary

N/A


Dating Evidence

Any dating evidence remains unpublished

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

Photographed by RCAHMS Aerial Survey Programme in 2009. Highland HER contains a series of ground views taken in 2000

Investigations:
1st Identified Map Depiction (1877):   Named in Gothic type on the 1st edition OS 25-inch map (Inverness-shire, Skye, 1881, sheet 21.3)
Earthwork Survey (1921):   Plan and description (RCAHMS 1928, 156, no.506, fig 223; RCAHMS IND 27/1-2)
Other (1984):   Description and sketch-plan (MacSween 1985, 42, fig 8)
Other (1985):   Description and sketch-plan (Swanson 1988, 864-5 cited in MacKie 2007, 810-11)
Excavation (1989):   Evaluation (MacSween and Reed 1989)
Excavation (1990):   (MacSween and Reed 1990)
Excavation (1993):   (MacSween and Reed 1994)

Interior Features

Paving and structures revealed by excavation

Water Source

None

Source:
None  
Spring  
Stream  
Pool  
Flush  
Well  
Other  

Surface

Broch

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

Excavation

Paving, drains and hearth

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

Broch

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:   Discontinuous circuit

Number of Possible Original Entrances:  
2:   None

Guard Chambers:  

Chevaux de Frise:  

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

Enclosing Works

Single wall

Enclosed Area:
Area 1:   0.07ha.
Total:   0.07ha.

Total Footprint Area:  Noneha.

Ramparts

None

Multi-period Enclosure System:
✗   None

Ramparts Form a Continuous Circuit:
✓   This excludes the broch wall

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

MacKie, E W (2007) The Roundhouses, Brochs and Wheelhouses of Atlantic Scotland c.700 BC-AD 500: architecture and material culture, the Northern and Southern Mainland and the Western Islands. BAR British series (2 V): Oxford

MacSween, A (1985) The Broch, Duns and Enclosures of Skye. Northern Archaeology 5-6 (1984-85), 1-57

MacSween and Reed, A and D (1989) 'Dun Colbost (Duirinish parish), broch'. Disc Exc Scot (1989), 35

MacSween and Reed, A and D (1990) 'Dun Colbost (Duirinish parish), broch'. Disc Exc Scot (1990), 28

MacSween and Reed, A and D (1994) 'Dun Colbost (Duirinish parish): broch'. Disc Exc Scot (1994), 40

RCAHMS (1928) The Royal Commission on the Ancient and Historical Monuments and Constructions of Scotland. Ninth report with inventory of monuments and constructions in the Outer Hebrides, Skye and the Small Isles. HMSO: Edinburgh

Swanson, C B (1988) A contribution to the understanding of brochs, Unpublished Ph D thesis. University of 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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