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 Excavations which examined the area between the broch and the outer wall are as yet unpublished.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Any dating evidence remains unpublished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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