Atlas of Hillforts of Britain and Ireland

SC1150 Arran, North Sannox, Torr An T' Sean Chaisteil, Buteshire

Satellite Imagery

Satellite Imagery

HER:  The West of Scotland Archaeology Service 4802 (None)

NMR:  NS 04 NW 7 (40220)

SM:  412

NGR:  NS 0018 4738

X:  200180  Y:  647380  (OSGB36)

Summary

This fort occupies a rocky hillock that rises up on the S side of a burn gully on the SE flank of Torr Reamhar, one of the hills forming the N side of North Glen Sannox. Oval on plan, it measures about 35m from NW to SE by 30m transversely (0.08ha) within a tumbled stone wall 0.4m in height and spread 5m in maximum thickness. A few outer facing-stones are visible on the S, and lining the entrance on the SE, which is 3m wide. The rocky interior is featureless, but what is probably a relatively modern shelter built within the ruins of the wall on the W was mistaken by James Balfour as an ancient structure. In addition to the inner wall enclosing the summit, there are outer walls forming annexes on the NW and SE respectively. The latter provides additional protection to the entrance, comprising a crescent of wall some 2.5m thick by up to 0.8m high set about 9m in front of the inner rampart and also pierced by an entrance. The annexe on the NW forms a rather larger enclosure, measuring about 30m from NE to SW by 20m transversely (0.04ha) within a ruined wall spread 3m in htickness and 0.3m in height; no evidence of an entrance has been noted in this annexe.

Status

Citizen Science:  ✗

Reliability of Data:  Confirmed

Reliability of Interpretation:  Confirmed

Location

X:  -576602  Y:  7494717  (EPSG: 3857)

Longitude:  -5.1797050776200875  Latitude:  55.67869644700946  (EPSG:4326)

Country:  Scotland

Current County or Unitary Authority:  North Ayrshire

Historic County:  Buteshire

Current Parish/Community/Council/Townland:  Kilbride

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:  195.0m

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

First depicted in 1864 on the 1st edition OS 6-inch map (Argyll and Bute 1869, sheet 238), it was described by James Balfour about 1910 (1910, 175). It was visited by the OS in 1977 and Scheduled in 1953.

Investigations:
1st Identified Map Depiction (1864):   Annotated Fort on the 1st edition OS 6-inch map (Argyll and Bute 1869, sheet 238)
Other (1910):   Description by James Balfour (Balfour 1910, 175)
Other (1953):   Scheduled
Other (1977):   Surveyed at 1:10.000 by the OS

Interior Features

Featureless and largely outcrop

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:   None

Number of Possible Original Entrances:  
2:   None

Guard Chambers:  ✗

Chevaux de Frise:  ✗

Entrances:
1. Simple Gap (South east):   Some facing remains in place

Enclosing Works

Single wall with outworks enclosing annexes

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

Total Footprint Area:  0.25ha.

Ramparts

None

Multi-period Enclosure System:
✗   None

Ramparts Form a Continuous Circuit:
✓   While the annexe on the SE forms an outwork to the inner wall, that on the NW may represent an independent enclosure

Number of Ramparts:  
NE Quadrant:   1
SE Quadrant:   2
SW Quadrant:   1
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:
✓   Outworks enclose annexes on the NW and SE, the latter providing additional protection to the entrance and the former an enclosure of about 0.04ha. the relationship between this larger annexe and the inner fort is unknown and it conceivably represents an independent enclosure.

References

Balfour, J A (ed.) (1910) The book of Arran, vol.1. Glasgow



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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