Atlas of Hillforts of Britain and Ireland

SC3479 Blackbrough Hill, Roxburghshire

Satellite Imagery

Satellite Imagery

HER:  Scottish Borders 59050 (None)

NMR:  NT 81 NW 28 (59050)

SM:  2166

NGR:  NT 8086 1771

X:  380860  Y:  617715  (OSGB36)

Summary

This fort is situated on the summit of Blackbrough Hill, which is itself the SW spur of the hill forming the summit at the S end of Craik Moor. The fort dominates a short steep slope rising out of the saddle on the NE, while elsewhere on the NW and SE the ground falls away sharply into Cribs Hope and Heather Hope respectively, and though the crest of the spur shelves more gently for some 200m to the SW, here again the slope plunges 180m down into the valley of the Heatherhope Burn. Oval on plan, the fort measures 85m from ENE to WSW by 65m transversely (0.43ha) within a single rampart with an external ditch, both presenting such a ragged appearance that in 1985 Roger Mercer suggested that the defences were unfinished. Be that as it may, these are amongst the most substantial fort defences to be found anywhere in the northern Cheviots, with a rampart 9m to 12m in thickness by between 0.9m and 1.5m in height internally and 4.5m externally, and a ditch up to 4.5m in breadth by 1.2m in depth. There are entrances on the NE and SW, the former opening onto the saddle and flanked by the rampart which turns out to either side of the gap to create a passage descending between the terminals of the diches, a feature more usually associated with entrances where inner an outer ramparts return and unite. In addition to the fort defences, there is also an oval palisaded enclosure lying at in the middle of the interior and measuring some 33m from NW to SE by 26m transversely. On its N side traces of a large timber round-house defined by a shallow groove are visible, while Mercer noted another smaller example apparently cut by the palisade trench on the S. This latter is one of a row of four he found, while elsewhere in the interior of the fort he noted a scatter of shallow and irregular scoops and platforms, one cut through the palisade trench. The only other features of note are a rough line of pits he noted outside the defences on the S, and a bank and ditch cut through the outer lip of the fort ditch on the ESE; descending a short distance down the slope, it blocks access round the SE side of the fort, but it is unclear whether this is merely a later boundary or a feature of the defences.

Status

Citizen Science:  

Reliability of Data:  Confirmed

Reliability of Interpretation:  Confirmed

Location

X:  -256499  Y:  7450275  (EPSG: 3857)

Longitude:  -2.3041725269506634  Latitude:  55.45294793679241  (EPSG:4326)

Country:  Scotland

Current County or Unitary Authority:  Scottish Borders

Historic County:  Roxburghshire

Current Parish/Community/Council/Townland:  Hownam

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:  420.0m

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:   Possibly the palisaded enclosure is inserted into the interior. A minor bank and ditch also appear to cut the defences, tailing off after a short distance downslope

Evidence:No related records

Investigation History

Photographed from the air by Dennis Harding in 1982 and 1983, CUCAP in 1948, and by RCAHMS Aerial Survey Programme in 1977, 1993, 2000 and 2010

Investigations:
1st Identified Map Depiction (1859):   Annotated Fort on the 1st edition OS 25-inch map (Roxburgh 1863, sheet 22.16)
Other (1897):   Description by Francis Lynn (1898, 194-5)
Earthwork Survey (1938):   Plan of the earthwork (RCAHMS RXD 120/2)
Earthwork Survey (1949):   Palisade added to plan and description (RCAHMS 1956, 162, no.302, fig 188; RXD 120/1-2)
Other (1960):   visited by the OS
Other (1961):   Scheduled
Other (1976):   Visited by the OS
Earthwork Survey (1985):   Plan and description by Roger Mercer (RCAHMS DC15908, DC48748, DC48753; overall plan DC48811 & DP100546)
Other (1987):   Visited by the Hill-Fort Study Group

Interior Features

Apart from a palisaded enclosure containing a timber round-house, there are traces of four other small round-houses defined by shallow grooves, one of which Mercer suggests dayes from before the palisade. He also suggests that there are at least seven platforms within the interior of the fort, though his plan shows eleven, and one of these is cut through the palisade trench.

Water Source

None

Source:
None  
Spring  
Stream  
Pool  
Flush  
Well  
Other  

Surface

Ring-grooves

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

Several of the ring-grooves can be made out

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:  
2:   None

Number of Possible Original Entrances:  
2:   None

Guard Chambers:  

Chevaux de Frise:  

Entrances:
1. Passage-way/Corridor (North east):   Possibly part of an arrangement comparable to those where the ramparts return and unite around the terminals of the ditch, though little trace of a counterscarp bank
1. Out-turned (North east):   Absence of clear evidence of a counterscarp bank has led to this being included as a possible out-turn
3. Simple Gap (South west):   None

Enclosing Works

A single rampart and ditch

Enclosed Area:
Area 1:   0.43ha.
Area 2:   0.8ha.
Total:   0.8ha.

Total Footprint Area:  Noneha.

Ramparts

None

Multi-period Enclosure System:
✓   Mercer argues for a threefold sequence of occupation within the interior, though not in relation to the perimeter; evidence elsewhere that the process of occupation tends to destroy traces of earlier features, suggests that the palisaded enclosure may date from after the occupation of the fort, though if, as Mercer believes, the defences are unfinished, then this sequence may be reversed.

Ramparts Form a Continuous Circuit:
✓   None

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

While Mercer suggests that the defences are unfinished, this explanation of irregularities in the profiles of both the rampart and ditch are not particularly convincing, and nor is the line of pits outside the defences on the S convincing as an unfinished line of defence.

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:  1

Annex:
✗   None

References

Lynn, F (1898) 'The heads of Bowmont Water'. Hist Berwickshire Natur Club 16 (1896-8), 185-200

RCAHMS (1956) The Royal Commission on the Ancient and Historical Monuments of Scotland. An inventory of the ancient and historical monuments of Roxburghshire: with the fourteenth report of the Commission, 2v. 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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