Atlas of Hillforts of Britain and Ireland

SC1627 Arbory Hill, Lanarkshire

Satellite Imagery

Satellite Imagery

HER:  The West of Scotland Archaeology Service 10512 (None)

NMR:  NS 92 SW 2 (47427)

SM:  264

NGR:  NS 9445 2379

X:  294450  Y:  623790  (OSGB36)

Summary

Situated on the summit of Arbory Hill, which is itself the W spur of the ridge of higher hills to the E, this is one of the higher forts in Scotland. Its defences reveal at least three phases of construction, in which an inner stone-walled enclosure has been inserted into the interior of a larger bi-vallate fort, which has itself replaced an earlier palisaded enclosure. The inner enclosure, which is roughly circular and measures 43m in internal diameter (0.14ha), was defended by a substantial wall, now spread up to 9.8m but probably originally in the order of 3m in thickness, and has entrances on the E and SW. This occupies the centre of the earlier fort, the interior of which measures 82m from E to W by 69m transversely (0.42ha). The earlier defences comprise two stone ramparts, each with an external ditch accompanied in places by a counterscarp bank; the inner of these ramparts forms a bank about 5.2m in thickness, standing no more than 0.8m in height internally, but up to 3m above the bottom of the ditch. The two lines are roughly concentric about 5m apart around the southern half of the circuit, but diverge to 8m on the NW, and as much as 20m on the ENE, to form the outer terminal of the staggered entrance in the outer rampart on the E. This is one of five entrances that penetrate both ramparts, the others being on the S, W, WNW and N respectively, but whereas the inner and outer gaps of those in the NW quadrant are roughly opposed, on the E and S the gaps are offset to expose the righthand side of approaching traffic; while these latter may be an expression of defensive architecture, they may also hint that the inner and outer ramparts of the outer circuits are not contemporary, the outer enclosing an overall area of 0.88ha. The evidence of the earlier timber perimeter is most clearly seen at the E entrance, where a minor outward deviation in the line of the inner rampart to create a slight stagger at the gap has revealed the line of the earlier palisade trench, which is otherwise mainly buried beneath the rampart round the rest of the circuit. Within the outer ramparts there are traces of the stances of at least seven timber round-houses, three of which had internal ring-ditches and lie within the inner enclosure.

Status

Citizen Science:  

Reliability of Data:  Confirmed

Reliability of Interpretation:  Confirmed

Location

X:  -408803  Y:  7458828  (EPSG: 3857)

Longitude:  -3.6723417686052  Latitude:  55.496495155937815  (EPSG:4326)

Country:  Scotland

Current County or Unitary Authority:  South Lanarkshire

Historic County:  Lanarkshire

Current Parish/Community/Council/Townland:  Lamington And Wandel

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:  425.0m

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:   Stone-walled enclosure inserted into interior. Also overlain by rectangular hut and there are numerous small structures built into the inner wall, probably all of relatively recent date.

Evidence:No related records

Investigation History

First depicted in 1773 on Charles Ross's A map of the Shire of Lanark (1773), and thereafter on William Forrest's map of The County of Lanark from an Actual Survey (1816), it appears in slightly more detail on the 1st edition OS 6-inch map (Lanarkshire 1864, sheet 43). In 1889 it was sketch-planned by David Christison (Christison 1890, 302-4, fig 6). A chert scraper was found here in 1931 (Proc Soc Antiq Scot 66, 1931-2, 18). In 1959, the fort was surveyed by RCAHMS and in 1963 and 1975 revisited during the preparation of the County Inventory for Lanarkshire (RCAHMS 1978, 90-1, no.213, fig 45). It was visited by the OS in 1978. A prominent hill in Clydesdale adjacent to Roman monuments, it has been regularly photographed from the air, by CUCAP in 1945, 1949 and 1968, and by RCAHMS in 1976, 1980, 1982, 1985, 2000, 2003 and 2006. The palisades, along with adjacent cord rig, were first identified from photographs taken under snow in 1980. It was Scheduled in 1967

Investigations:
1st Identified Map Depiction (1773):   Charles Ross's A map of the Shire of Lanark (1773)
Other (1816):   William Forrest's map of The County of Lanark from an Actual Survey (1816)
Other (1859):   Annotated Camp on the 1st edition OS 6-inch map (Lanarkshire 1864, sheet 43)
Earthwork Survey (1889):   Sketch-plan and description by David Christison (1890, 302-4, fig 6)
Earthwork Survey (1959):   Plan and description during RCAHMS Survey of Marginal Lands (RCAHMS LAD 126/1-2)
Other (1963):   Visited by RCAHMS
Other (1967):   Scheduled
Other (1975):   Plan and description (RCAHMS 1978, 90-1, no.213, fig 45)
Other (1978):   Surveyed at 1:10.000 by the OS

Interior Features

Within the outer ramparts there are traces of the stances of at least seven timber round-houses, three of which had internal ring-ditches and lie within the inner enclosure.

Water Source

None

Source:
None  
Spring  
Stream  
Pool  
Flush  
Well  
Other  

Surface

Ring-ditch houses

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

Chert scraper was found here in 1931

Interior (Finds):
No Known Finds  
Pottery  
Metal  
Metalworking  
Human Bones  
Animal Bones  
Lithics  
Environmental  
Other  

Aerial

None

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:  
5:   In the outer circuits

Number of Possible Original Entrances:  
2:   None

Guard Chambers:  

Chevaux de Frise:  

Entrances:
1. Simple Gap (North):   None
2. Oblique (East):   Markedly staggered terminals in the outer, to expose the visitor's left side, and staggered gaps to expose right side
3. Oblique (South):   Oblique approach exposing the right side
3. Simple Gap (South):   Opposed rampart terminals
4. Simple Gap (West):   Opposed rampart terminals
5. Simple Gap (North west):   Opposed rampart terminals

Enclosing Works

Twin ramparts and ditches with counterscarp banks; the inner enclosure is regarded here as a later insertion to an earlier fort

Enclosed Area:
Area 1:   0.14ha.
Area 2:   0.42ha.
Area 3:   0.88ha.
Total:   0.88ha.

Total Footprint Area:  1.1ha.

Ramparts

None

Multi-period Enclosure System:
✗   None

Ramparts Form a Continuous Circuit:
✓   None

Number of Ramparts:  
NE Quadrant:   3
SE Quadrant:   3
SW Quadrant:   3
NW Quadrant:   3
Total:   3

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:  2

Annex:
✗   The expansion of the area between the ramparts here might be regarded as an annexe, but it might equally be related to the architectural configuration of the entrance here, opening onto the easiest line of approach, or indeed to the ramparts representing different periods of construction.

References

Christison, D (1890) 'Forts, camps, and motes of the Upper Ward of Lanarkshire'. Proc Soc Antiq Scot 24 (1889-90), 281-352

Feachem, R (1963) A guide to prehistoric Scotland. Batsford: London (p 134)

RCAHMS (1978) The Royal Commission on the Ancient and Historical Monuments of Scotland. Lanarkshire: an inventory of the prehistoric and Roman monuments. HMSO: 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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